yes, this guy knows what he's saying. Mainly because I said quite similar stuff a bit back, but it was completely ignored. (C'mon... I thought it was pretty logical:D)
anyways, try to block all thoughts of Manga and Anime here, focus solely on the games (which are made before either of the others).
First come Red and Blue, the two games that made the world go crazy. You played as Red, and had a choice of three starters.
Next comes Yellow. You had to use a Pikachu, but got the other three starters eventually. Yellow completed the trio. Then comes Gold and Silver. Blah blah blah, you get to Mount Silver, and battle a Pokemon Trainer Red. Oh, look, he's got a Pikachu, and the three Kanto starters. Wonder what that's referring to.
Whether or not you give a $hit about Yellow, there is no denying that GSC's Red was based on Yellow's Red. And, since HG/SS are remakes of GSC, which were sequels to RBY, naturally you'd expect Red's team to symbolize that of FRLG's Red. Because no, there was no Yellow Remake. However, the only change in Red's team was from Espeon to Lapras. Clearly, his team was, and still is, based off that which was possible in Yellow.
Now, unblocking thoughts of Manga and Anime. The Manga is based on the games. Full stop. Yellow was loosely based around the Anime. Very loosely- aside from a few events and team-changes, it's the same story as Red and Blue, just like the other third-sister games that followed. I don't think it's accurate to assume that, just because it was loosely based on the Anime, it is not Canon.
Yes, I see your art there, which depicts each player with a different starter. Really, it means nothing. It doesn't necessarily mean that Red was to pick Bulbasaur, it simply suggests that the player can pick Bulbasaur if they want. And, the Manga could have done whatever they wanted, but they went.. well, the way they went. I think the only safe connection between game and Manga is the names of cities, and some characters. Other than that it shouldn't really be considered in most cases. Same with the Anime. You're getting caught up with the fact that Yellow had similar events- I don't remember taking Misty's bike, or the Pokemon Center exploding. Remember, Yellow was loosely based on the anime, and only loosely, as I've explained.
To finish on topic, HGSS Red's team is based on his possible Yellow team. Come on, man, it's the most likely, most logical answer.
Alright, alright, you guys can cool down. Consider the arguement over (he hasn't responded anyway). *sigh* And for a moment I thought I had [/thread] this, guess not. Besides, the same points have just been covered multiple times (including my earlier post). It's been reiterated enough.