[color=magenta]I am pretty sure that base Special Attack determines the Special Attack/Defense stat experience that a Pokémon gains. So, going by that, Shuckle and Blissey would be bad choices to fight if you want to gain Special stat experience points. I don't know of a list of base stats, but you can check out my sticky thread in this forum: http://www.pokemasters.net/forums/in...?topic=25813.0
It has listings of all of the individual stats as well as total stats, and lists the Pokémon from best to worst in each stat, as well as their max stats for that stat. To calculate a Pokémon's base Special Attack stat, just go to the area where I listed all of the Pokémon's Special Attack stats, I have them listed with the strongest at the top, weakest at the bottom. Just take the number I have listed, subtract 98 from it, and then divide it by 2, and you will find out the Pokémon's base Special Attack stat.
Hope that helps!!