My experience is limited to Shimano LX, Avid Juicy 7's and Formula Oro's.
In first place I'd put Oro (havent needed any work, dont mind winter, great power, light but will eventually need a £15 bleed kit). They are in the process of being superseded now tho – you may get some bargains.
2nd – Shimano (good power, easy to work on, any car bleed kit works)
3rd – no brakes at all (kind of came about accidental like when using Juicy's that leaked)
4th – Avid Juicy's (good power, bugger to work on – need the £39 bleed kit often etc). Maybe I've been unlucky.
But that's just my experience.