I appreciate both and everything in between on that spectrum. Complexity certainly does drive people away and present a real obstacle to growing a playerbase, but it also asks folks to step up and learn something instead of be handed welfare epics. Simplicity is relaxing as well because life is complicated enough. Sometimes you just want to see big numbers and things going poof.
So take out your imaginary crayons today and draw a line. To the left are complex MMOs and to the right is simplicity in its finest. Don't levy judgment on which is better overall; just tell us where your preferences lie -- to the complex or to the simple? Vote after the jump!