Someone on TSR did some simulations based on assumption that Blast Burn is as good as Frenzy Plant, he concluded that Charizard can have DPS matching Moltres and Entei and will surpass other Fire pokemons.
https://www.reddit.com/r/TheSilphRo...ast_burn_charizard_could_beat_out_moltres_in/
https://www.reddit.com/r/TheSilphRo...ast_burn_charizard_could_beat_out_moltres_in/