The UCDs are excellent choices. Fun, easy to fly and will do anything 3D.
On the 46 size I use a Saito 82 w/ 14x4W APC prop. I use HS 5645 on the rudder and HS5625 on the elevators and ailerons or you can use HS645 on the ailerons if you want. I use a mini HS85 on the throttle. Great plane and one of the very few that will do a rising inverted flat spin.

On the 60 size, a Saito 125 will work or my personal favorite the YS 110 is even better. I use the same servos on this plane.

You won't be disappointed with either of these two planes, but I like the 60 size the best.
Good luck.
THanks
Barry