Because of the points you made, I pay little attention to statements about how "my splitter will split anything thrown at it". Come to my block pile and we'll see.
For me, the goal of a splitter is to not waste any wood. If I can get it onto the table I expect it to be split. Buy large.
I don't like the wedge on the cylinder but that's hard to avoid in the smaller splitters. It must be cheaper to build them that way.
I also highly value a catch table. Saves a LOT of back work.
All of these things appear trivial when you are standing in the store looking at your potential new splitter. Halfway thru the first load they become very significant. As someone mentioned above, it matters!!!