I think going into a game, movie, book, etc. with lowered or no expectations can really affect how much you like it. Add the three DLC packs on top of that and I can see getting a lot of enjoyment out of something like ME3.
For a personal example of outside factors affecting the enjoyment of a game, I played Walking Dead after being built up by all the Gaf hype and lost my save at the start of act 4 and had to continue on with random choices. That completely soured me on a game that would have probably been in my top few of the year had its big feature worked properly.
So yeah, I get Mass Effect topping Brad's list.