I generally use warriors. They're simple, but effective in a good game. In SW: Battlefront for example, I loved the trooper because I could get up to thirteen kills per death, the only time I could do better was when I got Darth Maul or Obi Wan Kenobi (At which point I could kill the entire enemy garrison). In LOTR: Conquest I always picked the warrior, because the shitty game mechanics meant that no other class would be able to beat the enemy warriors one on one. Even in Fallout 3 I tended to use mid range weapons like the shotgun, assault rifle or similar energy and plasma weapons all the time, though I did get quite good at using the .32 rifle for sniping towards the end. The only game I can think of where I prefer the other classes is Mass Effect, in which I quite enjoy using the infiltrator class.