I usually try using the heavy sniper, the Uzi and the combat shotgun. I usually just use the shotgun cause I can see the aim better (due to my sh*tty eyesight from where I sit to my TV) and I like its range. I see where your coming from with the explosives for the most part. RPG's get used too much. That one game the opposing team were using them and we managed to shoot them anyways. That makes the RPG user look all more foolish considering they still couldn't win using it. I've never bought a minigun yet, even though I want one. Not for TDMs, that would incredibly suck due to not being able to cover, or maneuver with it at all.
One thing I don't agree with though, is the relation between grenades, stickys and RPGs alot of you have. Especially the way I would use stickies if/when I used them. RPGs are the most pansy by far, cause they are the easiest and for people who can't aim. Grenades are how they should be even though highly unrealistic in a gunfight. The sticky bombs are on a different level. Despite what many of you think, a lower level in my opinion. I would never try throwing and detonating one in a gunfight, cause you'd probably be mowed down before you could even get the explosion. If I use them, I put them on propane tanks, cars, or hide them behind dumpsters or in other places out of view and watch them and let people walk over them.