Having experienced the good old days (and the not so good), the 662 would be something like a nice contra piece to all that. I have a Panerista friend who sold all over time (127, 249, 372, etc) and bought the 662 to have some sort of Panerai memento. I thought it was a cool move for a disillusioned die hard who still wanted to have something from that past.
For me, if it was going to be my only Panerai, I’d go for the obvious choice, the 587. It has all the makings of a special piece. I came across one with a price way below list, had a deer in the headlights moment and totally missed out on a great opportunity to own one. Never say never though. A 1940 and a “regular” Radiomir case are still on my list.
That being said, what I like about the 662 is that it makes having that “fauxtina” look totally acceptable design-wise as it blends well with the dial color. It does not look forced although one could argue that the whole dial is “faux” in the first place.
But if I were to place a bet.. hahaha! You’d probably go for the 587 first.
Sergio would pop a cork if you ever decide to pull the trigger on ANY Panerai

Best, Echi