Primarily a DM... and I'm torn.
Normally, my response to "we want tougher PCs" is "well, play at a higher level, then."
However, for newbie groups, I think a higher number of hit points at 1st level is a distinct advantage. The last thing we want is some new player having a character killed on the first round of combat, before he even gets to act. So, a higher number of hit points at first level is a good thing. More skilled groups can always house rule it back to 'normal' if they want.
In my as-yet-theoretical house system (that I might develop to replace D&D if I don't go to 4e), I'll be implementing fixed hit points per level, with a "hit point advance" rule, where you get triple hit points at 1st level, but don't gain any more hit points until 4th level (actually, until you new 'real' total is higher than your current total - but that distinction only matters for multiclass characters).