Rate my pokemon white team ?

You have a good party, I just think you should get rid of Starmie & replace it with a fire type. Both Gengar & Jellicent are ghost (Jellicent being ghost & water), so either get rid of Gengar or Starmie. I'd definitely stay with Gengar. These are all the fire type options you have (ONLY LOOKING AT BLACK/WHITE): Victini, Tepig (you can trade for it), Pansear (sucks lol), Darumaka (pretty good), Lampent, which later evolves to Chandelure is really good, Heatmor, Larvesta, Reshiram, & Arceus with a fire plate. If you have access to getting fire types from other regions/games, do that. I have Charizard. Not the strongest, but fast & one of my favorites. Hope this helped! (: