People in the west like him. See him requested in that Facebook poll and on 4chan quite often.Tingle and Ghirahim are "gay". The west will always be standoffish towards them.
First, why is the only source you mention is freaking Youtube. That's not a judge of popularity. Or at least not a complete picture. Shorties poll is much better and it puts him at 18 (Ghirahim I mean).Your fanbase? You say that Youtube has more Ghirahim-related videos than Groose videos. While this is true, much of Ghirahim's videos are simply his boss battles - where's the original content there? The highest ranking Groose video, Grooseward Gourd, is completely original content and has around 9,000 likes. The highest ranking Ghirahim video, has about ...600 likes. olol. Your "fanbase", essentially, consists of a tumblr/deviantart fanbase. Don't you know they go crazy for every single prettyboy male who could be implied to be homosexual? The proof is in my avatar. Just because you want to make the Ghiralink Tumblr canon doesn't mean he should be in Smash 4, or that "fabulous" could be a point in his favor.
A big reason Groose is a bad choice is he fails, what I call the Sakurai test. Sakurai uses 4 criteria to judge characters. They are.
Let's judge both Ghirahim and Groose and see how they do.#1: The character's inclusion must make people want to play the game.
# 2: The character must be unique.
# 3: The character must fit into the style of Super Smash Bros.
#4: They must contribute to the game balance.
Ghirahim
1)People already are warm to him, or will at least entertain the idea that he should be in. Something to note is this does not include just popularity but something else. He has to be an easy sell to people, even those that have not played Skyward Sword. Ghirahim can do that and you can see the potential in him.
2)Look at Holder's moveset. He has a lot of stuff. Done.
3)Basically, does the game have to be changed for him to be in. No need. Next.
4)This is always hard to say, but seeing as he has a bit to draw from, he can. He could go toe to toe with Marth and counter him with projectiles and teleports. He has enough to fit into the balance.
Groose
1)People like him, but the problem is beyond that. He's a tough sell for anyone else on the outside looking in. He's just a human with a silly hairdo. He looks like another human character, so I don't think people would look at him and say "He will be so cool." It will be hard to wow people with him.
2)There isn't much he can do. Yeah, people have made some, but it's nothing other characters do already and they do it better. If Groose fails one of these, it's this one. Other Zelda characters have unique abilities and attributes. Even looks. But Groose has nothing. Even with his signature bomb sling shoot, it's just bombs which Link uses and other characters can do too.
3)Again, game doesn't have to fit this one. Most characters will pass this.
4)very hard to say. I can make an argument for Ghirahim, but with no idea how his abilities work and having little to draw from, I would say no.
Ghirahim fits the mold better.
Just because a character has a fanbase, which Groose does, it doesn't mean they should be in. Ghirahim is a better all around choice. He has unique attacks, has people who like him and can be sold to other who don't know who he is before this game. Groose has 1/3 of that. Not saying don't suppose Groose, but don't be blind to what's around you.
I can say that some of the dark times of Pre-Brawl will start sooner with this game. This kind of arguments between thread didn't really hit until towards the end. I can say this thread will be a battleground later one.