Have you tried PitBull4? It's a lot easier to configure than 3. You can make it do pretty much anything you want.
I have tried PitBull 4 and the unit frames are hideous and still quite a pain to configure, but that isn't the point.
I'm asking about someone making a set of simple and actually good-looking unit frames. I use IceHUD and it is damn good looking, but every unit frame addon I have tried is just horrible looking. Yes X-Perl, Pitbull and others are very functional, they are eyesores and cluttered in my opinion. I do not need to know my main healer's height, weight and favorite color of ice cream, just the basics (like health, mana, debuffs, etc.) I just want it to look good while giving me the info (like the ArcBars skin in the IceHUD addon.)
I have been looking for the perfect unit frames addon but I have yet to find it. The popular ones like X-Perl and Pitbull and great but they are just so complex based on my experience with them.
What I want is a smooth looking, simple addon to show my party's and raids unit frames with jusy basic info like debuffs, health/power, with pet's maybe some optional stuff liek buffs, party targets, etc.
An addon I love is IceHUD and a perfect unit frame would have simple bars that could match this addon (ArcBars is my fave style)
I do not know anything about developing addons but would really enjoy seeing something like this created. I'd be happy to help however possible though.