Never Summers ride very differently from Mervin boards, in my experience. Never Summer has a much damper feel. If you want an all-mountain board that performs well in the park, go for the Pandora over the Skate Banana. Beyond that consideration, it's a matter of preference - each board feels slightly different and you really have to ride both to know for sure which is best for you.
The Evo Mini is a kids' board and will not be made as well as the Pandora.
If you like Burton, you'll probably really like the Lipstick. I've never tried it, but it gets great reviews - it has a ton of pop for jumps.
You should also consider the Roxy Eminence - a very nice board with C2BTX which makes it more versatile (more pop and stability) than regular BTX boards.