I don't touch pickle at all now - it is way too sweet. I would prefer olives, spring onions and cherry tomatoes these days.
It depends what kind of pickle... If it's bought stuff, then yes, some of it can be too sweet - and rather cloying at that. I would think that shop bought has more sugar in per 100g fruit / veg than home made. Can't remember the last time I bought pickle or chutney...
Same is true of shop bought jams. Those really *are* too sweet.
If you want a chutney that is on the sharp side, then might I suggest cranberry and apple chutney? It's well worth a try and is very tasty. The recipe calls for granny smiths, but I've found that bramleys work equally well, especially if you want a smoother texture.