In reply to Jafn1997:
Loving my arcteryx alpha fl30, it's basically a sack with a front pocket. Climbs nicely, I've climbed some hard (for me) trad with it on and tbh barely even noticed it. Pretty waterproof, nice and durable, simple but durable ice axe attachments (but I find it on the small side for winter stuff if I'm taking a rope - a bigger 40-50L bag works better for scottish winter), and you can slip a helmet between the drybag closure and the drawcord closure which is such a nice way to carry a helmet.
The hip belt is pretty minimal, and it doesn't have a hydration sleeve in it or anything, but for a more technical pack, I don't really think thats an issue as waterbottles are normally more convenient for me, and the hipbelt gets out of the way nicely when you are using a harness.
I've liked my osprey mutant too - had it for a few years. Works nicely, can fit a full rack, layers, and a rope in there drama free. Carries loads up to about 12kg well and it can strip down to being quite minimal if you're so inclined. It's a bit big (38l), but if you want to use it for winter stuff, that might work out nicely. I reckon I've used mine for around 100-150 days and it's still looking fresh.