On July 17th, two high profile exclusives will launch that could hardly be more different; Ghost of Tsushima on PS4, and Paper Mario: The Origami King on Switch.

Which do you think will sell more lifetime?

Paper Mario has the power of an established brand behind it, but games like Horizon Zero Dawn has shown that being a new IP doesn't mean a game can't go on to be a massive success, and GoT has a lot of hype behind it.

EDIT: Only talking about the original July 17th release of both games, not including any possible re-releases on future systems.

GOT. I feel like there will dissapointments after TLOU2 so PS4 users will be hungry for the next big game.

Paper Mario will more than likely sell more but GOT will be the much better game.

Deffo GoT ps4 could use more content
while switch users play the emulator of the OG paper mario

GoT will get a papercut and then folded away by the origami king.

To elaborate: FW GoT will probably win, but Mario has the much longer legs (or ARMS, going by the trailer) and will win out in the end.

I would say Paper Mario, assuming we're discounting the possibility of a PS5 port. Gotta go with the established franchise, especially since it's launching at a better time in relation to its platform. Switch is doing well, and still riding on the momentum of Animal Crossing while Sony is shifting into PS5 mode.

I'm going to say Ghost of Tsushima, although I think both will do very well. With Paper Mario, I expect 4-8 million, with 5-6 being the most likely area. With Ghost of Tsushima, I expect 5-10 million, with 6-8 being the most likely.

Well Animal Crossing did beat Doom

I have no idea how much other paper mario have sold in the past and recently most nintendo IPs are selling much better than on previous gen. New IPs don't always do well but Sony new IPs have been doing great mostly. So it is really hard to know.
I'll just say that I'm looking forward to GoT and paper mario did never really caught my atention even though I saw friend playing it a few times.

I think Ghost may edge it by a million or so.
Expecting 5 million for Ghost and around 4 million for Paper Mario which would be excellent for each game.