I suppose, if there was life on this 'perfect' world, nothing would suffer. So- I'm not sure any of the stuff on this planet would be suitable. Most beings here have evolved to exploit and devour other living things. Suffering seems to be in the very blueprint of the creations here.
I suppose a perfect planet would only exist with a perfect balance, because competition leads to dirty tricks being employed. Beings would have to live, age and die without suffering too so- I imagine everything would have to be dumbed/ numbed down.
It just feels impossible though to please multiple creatures who each have different preferences. Something that would be an ideal environment for one could be intolerable for another.
Would we even be all that happy without contrast? Some people seem to enjoy hating things. Hating others. Would they just get bored if there was nothing to be displeased with?
Would anything be particularly special if it wasn't rare? If we had good things all the time, would we still appreciate them or, would it all just become monotonous and boring? I suspect we're actually a pretty difficult species to please. Just the right temperature, the right amount of challenge, enough tolerance but, not too much.
If we think of a paradise, we probably envisage harmony. Everyone living in peace. But, we don't always want to rub along with others. I don't think one perfect world could even exist for us all as we are now. We'd need labotomies maybe!