I have 15-20 of them, with the Mora 2000 being my favorite. This is closely followed by the 510. If the Mora 2000 was available in Carbon steel, it would be the ultimate knife.
I am at work and this is off the top of my head, but I think this is a list of the model numbers I have. I have a bit of a Mora problem. For some of the models, I have multiple colors and carbon and stainless versions.
#2
440
510
545
2000
711
911
Clipper - Stainless and Carbon
680
760, 780 and the serrated version
Mora box cutter from SMKW
I also have one Ahti Finman which I like and several Hultafors, which are awesome. The heavy duty Hultafors is like a Mora on steroids.