I main a striker and I have never, ever 1-hit melee'd some one. Hunters are wayyyy more agile than titans, titans can close a gap, so can warlocks (though not quite as quickly). But a hopping hunter is a nightmare to deal with. Shooting a titan out of a FoH is far from impossible, and I (personally) find myself shaking my head in frustration from nova bombs than from fists. But hey, you don't have a titan and I rarely use my warlock so I don't know if we'll ever see eye-to-eye on this. Just remember, even though I play a striker (always have) doesn't mean I don't have to deal with them in the crucible.