I stopped basically playing global games due to too much gap/astro and similar and to long lobby times. 4v4 for me works much faster and is the same fun like playing global, except being limited to 8 players :-/. 1v1 is fine as well, but a completly different story in the experience. 2v2 does not happen for me due to the lack of other players ... sadly.

Can speak for a friend as well: he never played 1v1 because taking care of everything everywhere on the map by himself is just to much for him. So he only plays 2v2 or larger team games.