I feel Dreamland, Battlefield and Pokemon stadium are not good stages for beg-mid level marths.
My preference before I developed good recovery mixups and punish game
were always FoDs, Yoshi(marth) story, ... and after chain grabs Final Dest.
Final Destination is said to be a good stage, but if you learning marth and cannot zero to death combo
or reliably chaingrab opponents I dont think its a good pick. Your Recovery is very linear can be easily gimped by higher level players. You dont have a platform to mix-up your upb and most characters will bait out your attacks and then combo hard if your punishment game is subpar.
I think alot of this also applies to
Pokemon Stadium. Marth doesnt exactly shine in most of the transformations for starters.
Secondly although there are platforms they are further in stage and thus not as useful when air-dodging back on stage or for more recovery options. The platforms do let marth uptilt shenanigans run wild. and you can chaingrab third-best on this stage due to the fact you can combo if they land on these platforms without a top one to escape. IF you have either of these skills developed.
Battlefield Has platform combos off the Forward smash as all the platform stage do, but It has the shortest range of marths forward smash that actually get a hitbox to connect through it. Also the stage has a higher third platform which makes it hard for sub-optimal punish games to effectively reach.
Of course the better you get and more options you cover the different advantages you get from each stage. Which is what every
player should really consider
comfortability + skill level advantages = Good stage picks.
Never be that guy who picks Final Dest. because you watch M2K do it and you cant chain-grab or punish
In those scenarios the spacies suddenly have a 50-50 or higher matchup since the chaingrab to death is the only real marth
benefit of the stage. (grab game in general on FD)
hope that helps <3
-Million