I've never had a pug either, a couple family friends have them. they are little characters. I wouldn't want too large a dog in any case. we used to have mostly mutts when I was a kid.
Largest corgi I've had (very abnormal size-wise) was 40 pounds. Most have been between 22 - 30 pounds as adults. Prior to corgis, I've had mutts...plus side is saving dogs from the pound...down side are the unknowns on temperament, size, etc.