They're both fun. Elemental bomber is more starter friendly. Don't really know which one is stronger since I've only played glacial so far and I honestly don't care for which is > than which as long as I'm having fun.
Just know that you're fingers will be hurting a lot from spamming X's if you go EB lol. The pre-20 levels wasn't fun for me
Or you can get both like the hooker you are