Clownfish pair + 1 other Fish, or Three Different Types of Fish?

[Puff]

ve had a pair of clowns in my tank for well over a month. well...the evilness of the larger one proved too much for the small one to take, and he took the leap of faith sad.gif

now comes the decision...do i get another clown and go for the pair again? or should i go for a different type of fish? like a rainford's goby?

right now the only fish in the tank (24 gallon aquapod) are a small bimac blenny (<1" (that's "less than", right?)), and a small clownfish.

the LFS has a few Rainford's in stock and i think they are kind of neat, plus they would add some different colours and textures to the tank.

on the other hand, would a pair of clowns be that much more entertaining and be worth having over a wider variety of species?