I really liked the two most recent ones, though I only played a tiny bit of ragnarok at a friends place because im not about to buy a playstation. I tried the original after on emu and its just not my thing. new ones are more talky and just listening to mimir while going around which is the most important part. theres a huge gap between the old games and the newer two with a whole lot left unexplained and you fill in some of the blanks from the ingame dialogue.

if I had one major gripe, its the chapter where the kid has his rebellious phase or something and I recommend not backtracking for side goals untitl he becomes mentally stable again because the dialogue makes him seem really bipolar if you backtrack while he is being pissy. or just don't miss anything as you go.

edit: I meant to say something about how if you dont play the og games you kinda get the kids point of view where he doesnt really know anything about his dad's past. that and the beard saves the guy from looking like warpaint agent 47.