An interesting discussion given that we are presented with sooo much choice these days! I think it comes down to designing your panel to fit your mission and then personal choice as mostly the offerings are pretty good. I prefer small er panels and not all in one. I therefore went for the MGL minis. I know other brands offer similar. Then I had a Garmin 695 left over from my last aircraft that was yoke mounted - I panel mounted it in the Kitfox - these units have tremendous capability. Finally, an Ipad mini is our very good panel mounted friend! It is 12mths from first flight and a couple of hundred hours and all works well. We have crossed Australia a few times through some VERY remote areas and hot country and nothing quit. I do have a fan in the back that directs air into the back of the Garmin and I-pad which I recommend - the overhand of the panel dash keeps the ipad in shade mostly but I recently flew a Model 4 across OZ which didn't have the overhang and the ipad overheated a few times.
Anyway, that's one persons solution into the mix. By the way, the total panel cost under $10k.
cheers