I think Maleficent is a slam dunk hit. Now whether it will really affect Spider-Man due to the varying demographics I'm not sure. But don't underrate Jolie+Disney+familiar tale.
I guess with Godzilla I'm basing it more on the reactions I've heard when I've seen a movie that had both Godzilla and TASM 2 trailers. With TASM 2 I just got the sense that people felt like "Oh, another one." Whereas at least Godzilla really seems to be trying to distinguish itself. Hell, Cranston's presence alone gets people chattering.
And as far as TASM 2 vs. DOFP, I never said DOFP would make more than TASM 2. TASM 2 will obviously earn more. I said under-perform.