As usual, I'll be the weirdo with the dissenting opinion: I prefer hard games over easy games. Even if a game's cheap and/or frustrating and makes me yell "fuck" at the television (this happens sometimes, lol), I gain more enjoyment out of conquering challenges than simply mashing the "attack" command over and over until my thumb falls off.
Challenging and cheap are not exactly the same thing, i prefer the first over the second any day.