We have a house rule for HP where you get max HP at level 1, then for subsequent levels if you roll half or below on the dice you roll again. And a variation on that roll, if you roll below half, you then automatically get half HP instead. It saves the embarrassing situation of the wizard having more HP than the fighter, which is possible.
I prefer point buy for stats myself, although rolling can make for interesting characters to roleplay if you're not too worried about combat. When I first played Warhammer Fantasy it was such a disappointment to be pigeon-holed to a certain career because of the dice... you didn't roll x dice and then assign them to ability, you rolled for each stat! Suddenly your hopes of being a Targeteer were much more limited.