UngeheuerLich
Legend
the epic +3 bonus is noticable... the +1 bonus at level 1 not so often... +1/2/3 to damage can as well turn a "miss into a hit" (all those times, you would reduce the enemy to 1 hp, instead of 0hp)Most single target characters probably get in about 40 attacks per level (8 encounters, 5 attacks per encounter), more for rangers, sorcerers, wizards, etc. My fighter probably averages more like 80-120, between close, double attacks, and warlord granted attacks, while my barbarian was probably a _lot_ closer to that 40.
So, about 6x as often. I can say that having played my fighter in epic lately that I would miss at least once per combat, if I didn't have Expertise (at +3), since I have a +3/+4 on miss power that got used every single encounter to turn a miss into a hit... even with Expertise.
Hitting more reliably is only really necessary if your powers have effects other than damage... if you care about damage dealing, bigger damage dice and bigger static bonuses to hit help about as well, especially if you are already hitting very reliably...