After thinking about this a bit, here's some other ideas.

Bally early SS games.
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Bally Mata Hari
eight ball
bobby orr powerplay
evel knievel
harlem globetrotters
nitro ground shaker
playboy (perhaps a bad choice for other reasons)
space invader
Bally Star Trek
paragon
strike and spares
super sonic

EMs game
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gtb 300
gtb 4 square
bly air aces
gtb big indian / big brave
gtb card wiz / royal flush
gtb eldorado/target alpha / solar city
gtb far out / out of sight
gtb quick draw / fast draw
gtb flying carpet
wms grand prix
gtb high hand
gtb jungle queen / jungle princess
sonic mars trek
wms oxo
gtb king pin / pin up
gtb pop a card / drop a card
gtb sheriff / lawman
bly capt fantastic

On black hole and haunted house...
it's an interesting concept. top playfield is wide open (but a bit of a drain monster.) But the lower playfield is tight and hard to keep the ball in play. so it's a little of both worlds... but it may be just too frustrating. BH in particular is a brutally difficult game to play well.

If you would like, we can arrange a time for you and your son to come by and see the games (alone with no one else there.) We have 125 games set up and restored so you could get a good idea of what is good/bad, and we're only about 3 miles from your house. But it has to be a time when no one else is there (as i explained i have insurance issues with those under the age of 21, so we have to really monitor the situation closely with no other distractions.)