A buddy and I have been discussing what 6 pokemon of Ash's would make the best team of all..
You are talking about me now.
I feel that these six Pokemon would be the best for his team:
1) Pikachu - The Madonna of Ash's team; has done everything and is the most successful Pokemon he owns.
Pikachu is not the most successfull Pokemon Ash owns. Bayleef is! She has only been defeated twice after evolving from Chikorita into Bayleef (against Gary's Blastoise and against Harrison's Blaziken). When you calculate a win-loss-ratio (win=defeating an opponent, loss=being defeated), Bayleef definitely is Ash's most successfull Pokemon. Pikachu and Charizard are stronger, but not more successfull.
Pikachu got more wins, but also much more losses, so when looking for a winning percentae of all battles, Bayleef (as a Bayleef, not as a Chikorita) does better than Pikachu.
Bayleef didn't only beat Team Rocket, she single-handedly won Ash the Storm Badge against Chuck and defeated Harrison's Houndoom, for example.
Bayleef is not Ash's strongest Pokemon, Charizard, Pikachu and Snorlax are. But Bayleef defenitely deserves a place on the team.
Bayleef, who has a crush on Ash, will always be motivated and will work very hard, to prove herself to Ash to go on a journey with him again, and go away from Professor Oak, who she hates (at least, that was seen in the Whirl Islands episodes).
Charizard, Pikachu and Snorlax are Ash's strongest Pokemon, they get a guranteed place on the team. Then, Bayleef is the first Pokemon I'd add. I have two slots left, and I want Pokemon with a lot of battle experience, not ones who have rarely been outside of Professor Oaks laboratory (like Kingler, Muk, Tauros and Heracross). Bulbasaur has battle experience with Ash, and also with Professor Oak, which was shown in Pokemon Chronicles. Then there is one slot left, Sceptile is strong and has battle experience. But Squirtle also makes a nice addition, because he's a water type and three Grass types might be too much.
- Bulbasaur/Sceptile/Squirtle (choose two of them, depending on the opponent)
- Snorlax
- Pikachu
- Charizard
- Bayleef