I couldn't care less about vibrations, I always turn them off because they don't anything to the games for me while draining the battery. Triggers, again, not a fan of those since ever they were introduced in X360, give me responsive buttons instead like the Elite controller does. Long story short, if the gameplay is good the game doesn't need gimmicks, and if the gameplay sucks no gimmicks will save it.
What I'd personally prefer MS to do is to make some sort of a more affordable Elite controller, like drop down the customization options and even the build-in battery pack if necessary, make everything fixed instead, one fixed dpad, fixed back paddles/buttons, at least two of them if not four, and those short/responsive triggers, basically to try to make the Elite controller's functionality the default XB controller somewhere in the near future.