The Ohm 2.0 improves over the 1.0 quite a bit IMO with the harness change. ULA removing the original Ohm from the website makes complete sense. Compression on the Ohm is good stock, but I modified my Ohm compression with Lineloc 3's to solve the slipping I would get with the original cord locks used. It was a worthy upgrade.
Konrad, if you're intending to strap snowshoes or winter tools to the outside of your Ohm, you will have difficulty and may have to get creative. The compression on the Ohm is only to take in excess volume and stabilize the load, but doesn't really provide a simple means for lashing gear to the outside of your pack with the exception of items like: fly rod, trekking poles, shelter poles, small section of foam pad, etc., which can be slipped behind the side compression cord, then the slack pulled in.
I find the MLD hipbelts to be comfortable due to the generous use of padding, but they lack structure, which allows the hipbelt to collapse slightly with larger loads. The ample padding in the MLD shoulder straps offset this for the most part, but that might not be your cup o' tea. I prefer the inward pulling hardware found on the ULA hipbelts- their hipbelt design balance structure and comfort better than the MLD hipbelt design IMO. To each his own....