Yeha, I guess new Miata's are better. The only Miata I drove was an older one (early 2000s or late 90s), and it was weak. My Pontiac Grand Am felt better when accelerating. Driving a new Miata would probably increase my opinion on that car, but meh
I find it hard to believe that new 5.0 handle as well as Z, but even if they did, I'd still get a Z. Mostly because I believe that Z is built better than the Mustang, the Mustangs are very common, and the Z in my opinion looks better than the Mustang inside and outside.
Now, I would probably choose a Boss or GT500 over Z
But hey, lets not get too derailed? I think we just have different opinions and beliefs, and although mine is different than yours, I still understand and respect yours.