Go for the cubans.I have pairs of both motas and cubans in different tanks.The motas are shy and hide all the time,beautiful but very boring fish,the cubans on the other hand are very outgoing and very owner responsive.
I'd go with the Cubans . . . among other things, they should grow to roughly the same size as your other fish, while Motas and Freddies will outgrow them . . .
i have a pair of parachromis loiselli... REALLY cool fish not shy one bit. they look similar to a jaguar, only they are yellow instead, have a thick black line down their bodys and LOTS of little white spangles, where as a jaguar has little brown spangles. i love them so much they are my favorite fish. pictures do him no justice what-so-ever