Ok For the first time im gonna try to help the bowser boards with my experience !! Since I played a lot on this stage.
Delfino- floating part
There is a lot forms and there is always platforms, and everybody knows how bowser is good with platforms. We have only to take advantage of them. Some characters can go under the stage and attack us but correct me if Im wrong but UpB Oos if the timing is done correctly can couter this? I did it a few times but I dont know if it was an error from my opponent that let me do it. Oh and some times if they dont space it correctly I use down smash. After few times they stop going under the stage.
Delfino- Island and the other part with water both side
The only thing I can say about this its u can do a grab + ground break near the end part of the island. The opponent will fall in the water. At this moment, u can do right after the ground break animation a DownB. Since ur opponent is in the water he wont be able to avoid the hit.
Delfino- the 2 parts with the walkoff cg
CG them out off the stage
Delfino- The three green pillars thing
If im not wrong the ceiling seems low since the pillars are really high in this part and bowser is good to kill upward. What I like the most is doing UpB Oos and going right after in the ledge. Also u can do the Down B sweetspotting the ledge trick and when the opponent is in the water bowser bomb is awesome too !
Delfino- Shine Sprite tower
Again here I think the ceiling is low on the top of the tower. Also the side part of the stage are short too. Fair, Bair, Ftilt, Dtilt, Back throw and jabs sometimes can kill easily near the ledge.
Delfino- In general
The bowsercide trick that bowser can survives is sexy when u are able to do it. There is several places in this stage that can allow u to do it. The timing is difficult but not impossible. When I tried it, Im able to success it 50% of the case. If ur able to do it, it can give u a big advantage and if u miss it it will be in most cases 0% with the same amount of lifes. I know the exact timing of when I can do it and I try to CG my opponent and using Bowser Klaw when I know Ill be able to do the bowsercide trick.
I dont CP this stage against D3 and yoshi cuz of the walfooff stage CG -_-
But I like to CP it sometimes against other characters when I feel it will be good
I hope I helped the bowser board in doing this ^^