Captain Janeway. Sure she had successes, but they were only hers by proxy. If it hadn't been for crew members like Seven of Nine defying her orders and saving everyone they never would have made it back home. She hated her crew, I'm surprised there wasn't a mutiny after the first time she tried to trade ALL their lives for the life of some alien, (and yes I said 'trade' not 'risk'). Even as liberal as Picard was, he would have been shaking his head at some of her crappy decisions, Kirk would have just thrown her in the brig, lol.