Dependability. Not in the sense that people depend on you constantly, but that if they've got problems they know they can talk to you about it and know you'll have time to hear them.

Honesty. I've rarely seen a lie work better than the truth, and it's something I admire in people.

Patience. The ability to keep at something even if it's not going well, without trying to rush things gets work done better in the end.

Tolerance. It's not necessary to always agree, but at least be willing to listen to what others have to say.

An interesting question on the topic, do you believe the virtues you admire most apply to you, or do you actively aspire to achieve them?