Cow are still good, i did a few run and it is decent xp.
I know xp is less but it's still is good !
You guyz need to remember that most of you leeched all your level and that ppl who did quest without rush would be at level 20-25~ in nightmare act1, 35-45~ hell act 1. But now the way it work you can see up to level 55~ in normal, 80~ in nightmare. So once you reach the cow your already high level and in the 80 it wasnt that good xp for cow.


A little note on the side.
Even with a good group baal run can give xp loss if there is lot of those black souls. On the other hand, once under control are mostly doomed to an easy death bringing safe xp and like i said still good xp. There isnt super leveling in d2 anymore. The only way is with baal run.

Sorc and barb meet at ws2 wp then the barb b/o and the sorc teleport all the way to the minion and make a portal.
This is also possible with a fast ass or paladin with high vigor but less efficient.