I think I'm siding more with the iPad 4, but I'm not yet totally sure. I'm only concerned about the iPad 4's weight and size. Other than that I prefer everything about it over the mini. I currently have an iPod Touch 4th gen, and to me the iPad mini is exactly that but slightly bigger. It doesn't have retina and speed like the 4, which annoy me the most. I think the cons outweigh the pros of the mini, but I'd like others' opinion especially if you have both.
Honestly, if the "iPad mini 2" was scheduled to come out BEFORE summer with retina and improved specs, i'd probably lean towards that, but I'm getting my device especially to have something else to do this summer
Sucks that they didn't release the new stuff in march/april as rumored