Beech BE-77 Skipper:
Better Visibility
More Room
More comfortable
More Modern (relatively speaking)
More "big" airplane features (rudder trim, switches, general layout, etc)
It will spin but requires a bit of unconventional control input. In the Spin it recovers nicely.
IT IS SLOW.
Cessna 150/152
Cheaper
More common
docile
almost bulletproof for student errors.
150/Continental 0-200 engine more prone to icing
Better known to instructors
Doesn't really like to spin and often will recover on it's own after only a turn or two unless you really force it to stay there.
Piper PA-38 Tomahawk
Roomy almost as much as the Skipper.
Fastest of the group
aircraft feel "heavier" mor solid on the controls.
However: The T-Hawk is known for being unpredictable in the stall and will spin easily. When it spins it WILL NOT self recover as the Cessna 150/152 will.
Lots of bad press out there on the Tomahawk, most from people who have never flown one.
Point: If you are going to get into a Skipper, make sure your instructor/check pilot is familiar with the type. Almost every month I fly someone who learned "Put to edge of the cowling on the tree line/horizon,etc" In the Skipper (and to a lesser extent the Tomahawk) this will get you into trouble as the edge of the cowling is below the bottom edge of the windshield. Most pilots new to the Skipper tend to over rotate on takeoff and enter an excessively steep climb angle until they learn the airplane.