In my Prince Valiant game two of the players built near-identical PCs without colluding with one another; the only difference was the number of ranks allocated to Fellowship and Healing skill:
Brawn 4, Presence 3, Arms 3, Riding 1, Hunting 1, Archery 1, Fellowship 1 or 2, Healing 2 or1.
One described his PC as a middle-aged knight who's accomplished little, the other as a young knight of mighty thews. We decided that the second was the son of the first. It's worked out pretty well.
Ever wonder what it would be like to be a
Wizard in an adventuring party with a
20 intelligence and everyone else has an 8 intelligence.
My point is that with the standard array I see the same attribute distribution being used almost everything for a given class.
In my 4e game two of the PCs have 10 INT, two have 12 INT, and the invoker/wizard has 24 INT.
There is a similar though not identical patter across STR (on 10. two 12s, a 14, and then the fighter at 26) and CHA (two 12s, a 15, and a sorcerer and paladin each at 28).
A lot of skills show similar sorts of spreads.
It isn't really a big deal in play.