I haven't played a huge amount of woodrails. I've owned maybe 10 over the years, and played a few here and there at shows.
Some aren't really playable. I had a super nice Sittin' Pretty, which is a great looking game but not much fun to play. Rototarget isn't much fun and takes up way too much real estate, and it's very difficult to get the ball back to the top of the playfield where all the points are.
I've found lots of woodrails to be like that. Any woodrail with those bingo holes I imagine is a total drag to play.
Had a Williams 1951 Jalopy (same as Hayburners) and while it could be fun trying to zero in on a car to finish the race, it was by most standards pretty awful to play.
The best playing ones I can recommend are World Beauties and Wonderland.
World Beauties has three gobble holes, but they aren't that tough to avoid. It's addicting trying to get the number/babe sequence, fun shooting up through and around the gobble holes and pop bumpers to pick off the upper playfield targets. The backglass rototarget is an interesting feature that changes the skill shots and awards at the bottom of the playfield, and the no outlanes, but multiple drain lanes makes for interesting nudges and helps make it a very playable game.
Art is excellent as well, and it's a fun theme to try to bag all the babes from around the world. That great stupendous Gottlieb Bell makes an unholy racket.
Wonderland is a fun game to play with similar characteristic of no outlanes and very powerful kickers. There's only one gobble hole, and getting the trap hole up top is lots of fun. Again amazing art on this Williams game - up there with the Gottlieb stuff in my opinion, though it's more fantasy and doesn't have the humor of the Gottlieb art (which isn't a bad thing).
As far as finding them good luck on the Wonderland there are very few around and even fewer nice ones and I have one of them.
World Beauties/ Queen of Diamonds (same game but not as cool art/theme in my opinion) are common and are in the cheaper range of woodrails so I'd highly recommend seeking one out if you are looking for a fun to play woodrail. They both seem to go for around the same price $500-1000.