I'm considering the RV-12, havent chosen it yet.
The only problem I have with it is going to be the view. But this is a problem I have with all front-engined tractors and why I've flown high-engine pushers for most of my career instead (my current plane is a titan tornado).
But if I do go the front-engined tractor/kit LSA route, the RV12 really looks like the best option overall to me. My medical went away permanently at the ripe old age of 37 and I've flown under the SP rule with my private ever since then. So I have to stick with LSA in any event.
And if it flies like a vans and it sounds like it does, it's a winner out of the box IMO.
I havn't yet flown in one tho, which I need to do before starting any long-term plans....
PS: as for the 912, so far my 912ULS on my tornado has been a good engine and hasn't given me any trouble. As the cost continues to grind upward on it, tho, it's getting close to being impractical from a cost standpoint (i.e. the 582 is no longer cost-practical to buy new, for example). At its current cost of 20 grand, it's right on the border of being impractical. If they raise the TBO, tho as they're reportedly going to do, it'll go back into the good-deal range at least for a while.
But depending on how fast the cost goes up, that may end up knocking the RV12 out of the running for me depending on how long it's going to be before I consider a new plane. Rotax's competitors like Jabiru are fixing their engines at a steady rate, increasing their desirability. The USD shows no signs of ever getting better against the EUR and Rotax's appetite for price hikes doesn't look like it's going to wane anytime soon. So I'll just have to wait and see on that.
LS