I'm kind of split between the first Sly and the second. The first made me feel nostalgic about games like Jak&Daxter but with Crash Bandicoot's health system and the commentary they added for after you finished the game was a nice touch. But the second changed things up quite a lot and gave Sly its own original feel to an extent. This time instead of Naughty Dog nostalgia, it reminded me a little of Spyro back at the beginning of things with the world hubs to go from mission to mission and enemies to fight or avoid in-between. But with one, getting used to the difficulty with the health system was hard at times and the second annoyed me with how some world hubs were just continuations of the previous location for the same villain you wanted to take down, as well as Sly's strength being nerfed for the sake of the multiple characters and more stealth.
Also, have an opinion about Thieves in Time, WB?
"Cogito, ergo es eggo." A.K.A. "I think, therefore you are a waffle."