Some things about Battlefield over Dreamland
+ Platforms help mobility and Uair/Kick usage
+ Higher top blast zone makes you survive longer
+ Utilt and Usmash can actually hit opponents on platform (unlike Dreamland's)
+ Dtilt is amazing to edgeguard because BF's sides are super janky and Dtilts can land very easily
+ Easier to ledge cancel
- Opponents can abuse the BF side jank against you in recovery
- Higher ceiling may cause opponents to not die as early
Some things about Dreamland over Battlefield
+ Platforms help mobility and Uair/Kick usage
+ Farore's used on the ground horizontally does the AERIAL version when landing, meaning a stronger punish against projectile users if you get the read
+ Platforms are farther apart so you can do Dthrow combos a bit better
+ Lower ceiling = easier to kill with Usmash and FW
- Since grounded FW always does the aerial version when landing, you have to eat 10 more frames of ending lag, costly if missed
- Can't ledge cancel as much
- More susceptible to vertical KOs due to lower ceiling and elevated platforms
- Dtilt is harder to hit in an edgeguard attempt, FW may hug the side lip of the stage during recovery and not sweetspot the ledge
Wind doesn't really affect Zelda that much IMO. But yeah might be a bit biased against Dreamland. :^)