Mountain Bike or Hybrid Bike?

[bikebikebikebike]

I'm looking for a bike mostly to stay active. I would go around my neighbourhood mostly on trails and go to the park on the grass and up hills and dirt roads. I would maybe take some adventures and bike through the city or take it to the ravine and go by the river where there are dirt trails and maybe a little bit off off roading if I take it camping. Majority of the time, it would just be around the neighbourhood.

I was looking at this bike at Sport Chek http://www.bikesfortherestofus.com/2010/11/jamis-hudson-3.html and I'm not really sure if it suits my uses and was concerned with the 3 gears.
- Jamis Hudson Easy 3 St 2014
Frame 6061 TIG-welded aluminum, Hudson laid-back design with low ride height,
Fork SR Suntour NEX4600-V2 suspension fork, alloy crown and sliders, 63mm travel
Headset Internal cup, threaded, 1 1/8”
Wheels/Hubs Shimano Nexus-7 rear and Formula alloy front QR hubs,
Alex C1000 alloy rims, 36H, 14g stainless steel spokes
Tires Jamis Sport Comfort, 26 x 1.95”, skinwall
Shifter Shimano Nexus RevoShift SL-7S10, 7-speed
Chain KMC Z51
Cog Shimano Nexus, 20T
Crankset Forged alloy crank, single 42T chainring, 170mm, with full length chainguard
BB Set Sealed cartridge, 68 x 122.5mm
Pedals Classic block-style
Brakes Tektro forged alloy direct pull brakes with Tektro alloy comfort levers
Handlebar Hi-rise comfort, 15º sweep x 80mm rise x 640mm wide
Stem Jamis alloy, 180mm quill x 80mm extension
Grips Kraton comfort
Seat Post Alloy micro-adjust, 31.6 x 350mm, with alloy QR clamp
Saddle Jamis Comfort with memory foam, synthetic suede top, bumper springs
Sizes M: S (13”), M (15)”, L (18”), XL (21”) F: S (14”), M (17”)
Color M: Blue Slate or Pearl White F: Seafoam or Pearl White

I also liked the Jamis Communter 1 Femme 2015 Bike but was skeptical of the thinner tires.
Frame: Hi-Tensile steel frame, new sloping design, kickstand/rack/fender mounts, forged dropouts with double eyelets
Fork: Jamis City/Cross Hi-tensile steel unicrown, straight blades, double dropout eyelets
Rear Derailleur: Shimano Altus, RD-M310 rear
Number of Gears: 7
Shifters: Shimano RevoShift SL-RS43, 7-Speed
Chainset: Forged alloy crank, 170mm, with full length chainguard
Chainrings: Single 44T chainring
Bottom Bracket: VP sealed 3RB bolt type axle, 35×52×39, 126mm
Cassette: Shimano MF-TZ31 7-Speed 14-34T
Chain: KMC Z7
Pedals: Comfort platform with TPE non-slip insert
Brakeset: Forged alloy linear-pull brakes
Brake Levers: Tektro CL330 ergonomic designed alloy brake lever
Handlebars: Jamis ARC, 6061 aluminum, 25.4 × 35 sweep x 580mm (F 14", 18") 600mm (M 15, 17, 19, 21, 23)
Stem: Jamis alloy hi-rise, quill type, 35 × 90mm with 180mm quill
Headset: Water-resistant sealed mechanism, threaded, 1 1/8
Grips: New Anatomic double density kraton grip with reflective end plug
Wheelset: Alex R-1000 alloy rims, 36H, Formula alloy hubs with QR and 14g stainless steel spokes
Front Tyre: CST Marathon/Tour with silver safety stripe, 700 × 32c
Rear Tyre: CST Marathon/Tour with silver safety stripe, 700 × 32c
Saddle: Jamis Metro Sport with synthetic suede cover, burnished sides and bumper springs with satin steel rails, gender specific
Seatpost: Jamis alloy micro-adjust, 25.4 × 350mm
Seat Binder: Alloy clamp and QR seatpin
Accessories: Full coverage 45mm fenders with adjustable stays with mud flaps, new designed Jamis carrier (capacity 18kg/40lbs.) with Jamis logo strap, rear reflector, micro bell and kickstand

In the mountain bike section of Sportchek, I was interested in:
http://www.sportchek.ca/product/index.jsp?productId=57539916
http://www.sportchek.ca/product/index.jsp?productId=57541946
http://www.sportchek.ca/product/index.jsp?productId=33583486

I've never had my own bike before and I want one to suit my needs for awhile but at the same time, stay within my budget! I also don't know anything about bikes so I'm seeking help!

 

[Cavalol]

Jamis Hudson Easy: looks (to me) more like a sort of low maintenance town bike than anything 'serious' for the type of riding you say you want to do, to be honest I'd give that a miss.
'Commuter': looks a bit more like it, but still wouldn't jump out to me as anything that's going to take sustained fairly hard use.

Diadora Savis: to be frank looks awful.
Helix: Looks a better bet
Trail X2: On appearance definitely the best of the bunch you've picked. It'll be heavier than the others but you'll get used to that and it should last a bit longer than the others.

Just my opinion, everyone's different!

 

[bikebikebikebike]

Jamis Hudson Easy: looks (to me) more like a sort of low maintenance town bike than anything 'serious' for the type of riding you say you want to do, to be honest I'd give that a miss.
'Commuter': looks a bit more like it, but still wouldn't jump out to me as anything that's going to take sustained fairly hard use.

Diadora Savis: to be frank looks awful.
Helix: Looks a better bet
Trail X2: On appearance definitely the best of the bunch you've picked. It'll be heavier than the others but you'll get used to that and it should last a bit longer than the others.

Just my opinion, everyone's different!

Thanks! You made that so straight forward and easy for me!

 

[Tin Pot]

I'm not familiar with the U.S. Market, being from the UK, but I would look at a hardtail or a hybrid.

The first listed won't really handle muddy hollows and tree roots.

The trail x2 you e listed could fit the bill, but I can't speak for the brand or model as I've not heard of them.

Specialized are a "standard", so here's one of their hybrids
http://m.specialized.com/us/en/bikes/multi-use/crosstrail/crosstrail

And one of their mtbs, the Rockhopper
http://m.specialized.com/us/en/bikes/mountain/rockhopper/rockhopper-29