I know the easy thing is to say "HELL YEAH, GIANCARLO STANTON TO THE METS." Yeah in terms of value,the Mets come out on top..
But I step back & I ask myself who would I rather have over the next say 4 years. Stanton & someone like Dioner Navarro at catcher and Matt Garza in the rotation. Or Wheeler, d'Arnaud & say Choo in the OF.
I just don't think the Mets are at a point where making a deal like this makes sense for them. yeah it plus 1 HUGE hole they have, but it also opens up 2 holes. Mets just aren't there yet. Let's say we get lucky & Duda actually turns into a MLB slugging OFer, well we still need 2 Ofers with only Brandon Nimmo in the pipeline (maybe Corey Vaughn too). If we get 1 of those OFers by dealing off our catcher, then we'll need a catcher. We're not ready for this deal yet no matter how amazing & how young Stanton is.
Now say Syndergaard, Fulmer & Montero all have beastly years, then that may change things because then the pitching depth will still be strong even if you deal off Wheeler.