I prefer the 4 ball rollers. Especially the Rolling Thunders. The handles retract very low. Easy to fit into either car we have. Easier to lift 30 lbs than 45.
As for moving around the centers, its a polite "excuse me", then I start slowing rolling away. Move your feet or get bumped. If there is no hole, then I just wait. Not that big of a deal. Smaller tote wouldn't help.