The Mondas ones were cool because they had a story that lasted centuries. They felt more like a threat. I enjoyed the first appearances of the Cybus ones because they could actually take over the parallel Earth, and the Torchwood invasion and battle with the Daleks was decent. But the Next Doctor showed how silly it was to keep bringing them back. It was an rtd cliche to utterly defeat a foe but then find out that one slipped away and managed to survive.
With the Mondas Cyberman the Doctor could win and then still encounter them at another point in time without a long explanation justifying their existence.
I personally think the Cybermen in Pandorica Opens were the Mondas ones with an updated look that matched the Cybus ones.

Bow ties are coool.