My kit is 60/80/150
I am more of a longish lens person than wide, of the three, the 150 is probably my most used, but the 60 (to my eye) is very sweet.
However, if you are a wide angle type, the 60 won't be wide enough.
The CF's are a little more convenient, but I guess I am very adaptable, as two of my lenses are C's and I can go between them seamlessly. Sometimes I even use the lock on the CF that makes it work like the C's