until the gimbal is around for the solo very few will compare.
Here's how i see it tho:
Solos pros...
- solo is a little bit more flexible (no alt limit, you can remove it, customizable fw, you can downgrade, zillion flight modes, etc.)
- you can do flips and fly full manual with the solo, no problem
- more "smartshots"
- remote looks nicer, smaller (albeit gimbals on the stick arent great i heard..) an has a pause button (sounds smart!)
Solo cons/P3 pros...
- solo is a lot more expensive than p3(p even)
- p3 has a light, proven gimbal
- p3 is proven (yes, arducopter is proven but not the solo software and theres a zillion issues reported already)
- p3 is smaller, fits in smaller backpack
- p3 is readily available
For me, if you want a great 4K camera that just works the P3/P3P is a no brainer. Its cheaper and better.
If you want more flexibility, the Solo seems like a very good potential alternative once they ironed out the quirks, even thus is expensive.
Heck without Solo I bet the P3 would have been more expensive
At the same price I'd go Solo myself.. at current price, I went P3P without second thoughts.