I love both FT and HS2 but have to agree with Sticky. Both are fun but I often walk away from FT frustrated. It has great music, art, and charm but one slightly off shot to the boat ramps and you are done. Gameplay is pretty shallow. Going for locks is tough so better to just go for monster fish. I might like to get one someday but it's not on the top of my list nor will I want to pay much for one.
HS2 is easy by default but can be setup to be more difficult. Gameplay is shallow like FT but has that Ritchie flow. I love banging rpm loops and shifting. Using the plunger during gameplay is such a cool idea. The supercharger is a gimmick but still pretty cool. The lights, dots, and sound make it all come together. I've put in a ton of game on my HS2 and it still gets my blood pumping going for jackpots. I don't think I will keep it forever but it's going to be tough to let go that's for sure.
Both games work better when paired with other pins with deeper rules or different type of gameplay. On their own, I think HS2 is better balanced but both are great examples of early 90's pinball with unique themes.