Note, don't worry, I will take them for a test ride first 
Boardman Pro Carbon SLR - https://www.cyclerepublic.com/bikes/road-bikes/boardman-pro-carbon-slr-mens-road-bike.html
PRO: Decent frame by the looks of things, surprisingly good wheelset for a bike at this price. Seemingly very light, coming in at under 7kg?!
CONS: SRAM, which I'm not used to using, but would consider this a minor inconvenience presuming that it's not a steep learning curve to get used to SRAM
Boardman Elite SLR Endurance 9.0 - https://www.cyclerepublic.com/bikes...te-slr-endurance-9-0-mens-road-bike-2016.html
PRO: Nice frame (seen on bikes right up the range), decent components (i.e Ultegra) for the price
CONS: Not sure how good the wheels are (think they RRP at around £250, so presumably they're OK), could look more exciting
Boardman Elite SLR Endurance 9.2 - https://www.cyclerepublic.com/bikes...te-slr-endurance-9-2-mens-road-bike-2016.html
PRO: Dura Ace
CONS: As above, unknown on the wheels, is it worth an extra few hundred quid to get Dura Ace over Ultegra? Plus, it's not the most exciting looking bike.
I'm really just after whether people have any view on what they'd view as the best in terms of VFM, is there something I've missed in assessing these bikes?
Small-ish price diffs aside, I can't really draw out huge differences between the 3. What surprised me is that the cheapest of the 3 is purportedly the lightest...

Boardman Pro Carbon SLR - https://www.cyclerepublic.com/bikes/road-bikes/boardman-pro-carbon-slr-mens-road-bike.html
PRO: Decent frame by the looks of things, surprisingly good wheelset for a bike at this price. Seemingly very light, coming in at under 7kg?!
CONS: SRAM, which I'm not used to using, but would consider this a minor inconvenience presuming that it's not a steep learning curve to get used to SRAM
Boardman Elite SLR Endurance 9.0 - https://www.cyclerepublic.com/bikes...te-slr-endurance-9-0-mens-road-bike-2016.html
PRO: Nice frame (seen on bikes right up the range), decent components (i.e Ultegra) for the price
CONS: Not sure how good the wheels are (think they RRP at around £250, so presumably they're OK), could look more exciting
Boardman Elite SLR Endurance 9.2 - https://www.cyclerepublic.com/bikes...te-slr-endurance-9-2-mens-road-bike-2016.html
PRO: Dura Ace
CONS: As above, unknown on the wheels, is it worth an extra few hundred quid to get Dura Ace over Ultegra? Plus, it's not the most exciting looking bike.
I'm really just after whether people have any view on what they'd view as the best in terms of VFM, is there something I've missed in assessing these bikes?
Small-ish price diffs aside, I can't really draw out huge differences between the 3. What surprised me is that the cheapest of the 3 is purportedly the lightest...