I'm not quite sure if I completely understand the question. Are you asking what are more complex chords to learn or if you should stay away from complex chords?
I am trying to learn the guitar but I find some chords quite hard to play, just can't get my fingers in the right place comfortably. But I guess it's all about perservance.
Don't learn chords. Learn songs. Learn only the chords you need to play the song. If the song needs some chord you can't yet play then simplify the chord to as few as three strings if need be. You need to know a tiny bit of music theory, so read up on how chords are made
When you play rhythm matters more than the chords, just don't miss the beat and play something "close"