Don't get me wrong, I like the squad level as well, but this level has limitations. First, you are really limited to about a company size for the number of units or the game gets to be rather tedious to order all the units around. Most scenarios turn out to be larger engagements that are scaled down to squad level, so why not just play the platoon level to start with. Plus, you seem to get better tactical choices with a little higher levels as terrain can be more diverse and comes into play more then just a LOS calculation. And I find that the God type play of the squad level games really detracts from the experience. Interesting topic, where does everyone else sit on the subject?
I think that what draws people (at least me) to squad level games is that it's less abstract than higher levels, and it's easy to visualize the action, while at the same time having some tactical depth (flanking, etc.). Below squad level I think games tend to be about managing individual soldiers stats, using special abilities, etc. (like XCOM), although a game like Frozen Synapse is all about flanking. If I were to choose a higher level than squad level, I would rather play operational level or strategic level games, because they are more interesting to the history buff in me. It would be nice to try a game between operational level and squad level, though. I don't think I have ever played a game with platoon sized or company sized units. Maybe Memoir' 44 is supposed to be at that level, but that isn't much of a war game, IMO. Do you have any favorites to suggest?