D2's, D4's, Sennheiser 604's all great. I love 421's, though you can't often get them on a kit these days as drummers mount their cymbals a lot close. I had Beta 98's but sold them due to their fragile connector issues, not run with Beyer TG58's (like the old opus 88's) great condensor microphone, Sennheiser 904's a good alternative to 421's. There are many other options out there, the TG 58's have a great mount system. You choose your poison and go with it!