I don't have the queen or the APC yet but I've fiddled with the queen in store, this is basically what you're in for:
with the Queen, you're getting an incredibly fun to fiddle with hunk of plastic.
with the APC, you're getting an iconic vehicle that'll be fun to play with but a bit basic, if not lackluster, the army man is ok
with the Power Loader, you're getting a pretty damn good mechsuit, feels a little bit cheaply made but it won't break on you or anything. Army man is pretty lame in it but the green alien is so fun to play around with. The power loader makes up for the lame army man.