Coverage checker: Coverage.py or pycover or ?

[python at bdurham.com]

Looking for feedback from people using a coverage checking utility. I've
found two - wondering if there's any feature that would recommend one of
these utilities vs. another (or argue for the use of both utilities).

Coverage.py
http://nedbatchelder.com/code/modules/coverage.html

and

Pycover
http://www.geocities.com/drew_csillag/pycover.html

Thanks,
Malcolm