Sorry to clutter the thread with my incessant lists (last one, promise...), but a few people were soliciting my opinions on gameplay.
Disclaimer... these are only my own feelings about the games *I* like to play as of February 2018. When it comes to others, I often make completely different recommendations after getting to know their preferred play style (Gottlieb Guys, "play for specials", "play for speed/score", tournament players, etc.):
Excellent:
Bristol Hills Gottlieb 1971
Dixieland Bally 1968
Ice Show Gottlieb 1966
Old Chicago Bally 1976
Snow Derby Gottlieb 1971
Solids N' Stripes Williams 1971
Space Mission Williams 1976
Fun:
A-Go-Go Williams 1966
Campus Queen Bally 1966
Fan-Tas-Tic Williams 1972
Hang Glider Bally 1977 (but the artwork is TERRIBLE...)
Hi Deal Bally 1975
Hot Line Williams 1966
Hot Shot Gottlieb 1973
King Pin Gottlieb 1973
Magic Town Williams 1967
Marble Queen Gottlieb 1953
Night Rider Bally 1977
Pioneer Gottlieb 1976
Score Board Gottlieb 1956
OK-to-Meh:
Aladdin's Castle Bally 1976
Big Daddy Williams 1963 (great layout, but largely "play for specials")
Big Indian Gottlieb 1974 (note: most Gottlieb Guys will rate this Excellent)
Big Show Bally 1974
Blue Chip Williams 1976
Boomerang Bally 1974
Bowling Queen Gottlieb 1964
Crosstown Gottlieb 1966 (the Add-A-Ball versions, Subway and Flipper Fair, would be Excellent)
Daffie Williams 1968
Dancing Lady Gottlieb 1966
Darling Williams 1973
Ding Dong Williams 1968
El Toro Bally 1972
Gulfstream Williams 1973
High Hand Gottlieb 1973 (the Add-A-Ball version, Captain Card, would be Excellent)
Hollywood Chicago Coin 1976
Mini Zag Bally 1968
Moulin Rouge Williams 1965
Pro Football Gottlieb 1973
Rack-a-Ball Gottlieb 1962
Sky Kings Bally 1974
Sky Line Gottlieb 1965
Surf Champ Gottlieb 1976 (note: most Gottlieb Guys will rate this Excellent)
Yukon Williams 1971
Too quaint/too slow/mostly about the art package and/or "play for specials":
Central Park Gottlieb 1966
Egghead Gottlieb 1961
Fashion Show Gottlieb 1962
Flipper Clown Gottlieb 1962
Flipper Parade Gottlieb 1961
Flying Chariots Gottlieb 1963
Four Seasons Gottlieb 1968
Harvest Bally 1967
Masquerade Gottlieb 1966
Roller Coaster Gottlieb 1971
Sitting Pretty Gottlieb 1958
Sweet Farts Gottlieb 1963 (yeah yeah, I only pick on it because Gottlieb Guys pick on Bally El Toro... both are dominated by lanes!)