Tough. Left Hand Path > Every Dismember album, but Dismember are obviously more consistent, and LAES and Death Metal still kick butt. I'll choose Dismember.
I never did hear Dismember, and only heard Entombed's first three and they didn't blow me away as much as I was expecting based on all the "classic" comments.
I thought the new Dismember sounded like older In Flames to be honest. Lots of Maiden influence and tempo changes which was cool. But it didn't come close to Left Hand Path...
...still, can't decide. Haven't heard enough from either, but I didn't like Morning Star whatsoever, and in fact traded it away with npearce for some Sacred Reich. So I'll vote for Sacred Reich.