If Remo works for you, why change? You can spend lots of money going through heads and still come right back to what you've used before. I think as musicians we like to glorify the experience of trying "something new", and end up blowing a lot of cash in the meantime.
As for me, every head by Evans I have purchased has been a success. I will probably never use anything else for my snare or my kick beater heads.
Tom heads are still a mystery for me. I have gone through two series of Aquarian heads, one being the response 2 clears and the other being the super 2 coated. The response 2 clears were nice and wet but kind of flat sounding; the super 2's were fat and warm, but the tone wasn't what I was looking for. I thought about trying some Studio-X, but I think as long as I'm having terrific luck with Evans heads, I'm going to "stick" with them, haha.
Look at some youtube videos, read reviews on musicians friend (look for the 4.5 and 5 star overall reviews), and pick your top 3. Buy one head each of those three and compare. Then go from there. Rinse and repeat until you find your permanent head. Bottom line, find something that works and then use it. It will be part of "your" sound and nobody can steal that from you.