What makes Yoshi's a better option vs Fox than FoD? I'd have thought that the higher ceiling makes it harder for Fax to kill. Do the platforms play into it? Thanks.
Yoshi's is if you are confortable controlling the stage. Battlefield is if you want more stage space to fight them, so it varies from opponent to opponent for you
Why you go yoshi's
you can lock FOX down, instead of the other way around, with good spacing
your uair and utilt cover a majority of the platform, so precision for those has a bit of leeway.
sh uair covers top platform if they don't di their shield down, and you also have fhuair fhuair onto the top platform if you are frame perfect/almost perfect
good walltech, not able to get battlefielded.
slope helps you edgeguard
Why you go battlefield
more space to interact with your opponent
battlefield works against their upB, so edgeguarding is much easier if they are BELOW the ledge
both have tipper guaranteed on the lower platforms.