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Oh yeah, I agree Milotic is definitely better than Whishcash outside of availability. Availability is by far the biggest reason (though its Ground-typing also matters).
Tentacruel does have better stats (notably higher SpDef and Speed, slightly better SpAtk), but I think its Poison typing...
Barboach can be obtained at Route 208 (left of where you get the Good Rod). Also, I do believe its stats are good enough. Sure, they're not impressive, but they're similar to Lantern and Dewgong, both of which are effective mons due to their typing and access to strong moves such as Surf and...
I also have some points for DP Pokemon that should be reconsidered. This is not a complete analysis, however:
Again, this is all just for consideration. This is mostly to give credit to some forgotten mons (mostly Barboach and Remoraid).
Just found this thread. I have some arguments for Snover:
Snover E--->B (maybe C) (DP)
I'm actually surprised to see Snover that far down. I used it in my Pearl run years ago, and I think it's one of the best late-game Pokemon (and probably the best non-Legendary one)! I'd love to give it...
LF: 31/0/31/31/31/0 Male w/ Relaxed/Sassy/Quiet nature. Any pokemon that can breed works.
OR
31/0/31/31/31/0 Female w/ Relaxed/Sassy/Quiet nature in the Water 1 and/or Dragon egg groups.
Trades in description
Need help completing my Pokedex in both Sword and Shield. Last mons are Type: Null and Silvally (saving my for soft reset).
Edit: Just need Silvally now
LF HA Rare Ball Rufflet/Braviary. Adamant or Timid would be useful.
Obtained Level Ball and Lure Ball ones. Still would trade for others, but it's not mandatory now.
Moon Ball would be great. Breedject would also be great.
I would also like a Love Ball, but I don't have access to my 3DS. If you can transfer it to Sword/Shield or use Home, that would be dope.
I understand. PM would be best, since I'll know once I see my phone (emails). It may be difficult, however, due to differences in time zones, but hopefully we find a time when both of us are free to trade.