The big difference for me was that I don't see Maverick having any impact on pop culture unlike the OG. How many catchphrases did we get from the first one that you can still use today and everyone gets, and I can't think of anything from this new movie. none of the characters were even close to as endearing as Goose and the villian was nothing compared to Ice.
It's still a must see for all the flying but otherwise I think the original is better.
And, the biggest wtf for me, can someone explain to me how a career pilot can afford a P-51 Mustang and several other toys including a 50K Kawasaki.