Considering Tesla came up with the idea of using alternating current, which is far superior to Edison's championed direct current methods, then Tesla wins out on power generation at least.
As for other electronics - well, it's pretty common knowledge that most of Edison's ideas were borrowed, copied or outright stolen from other inventors. However, Tesla dealt in technologies that haven't been explored that much yet, such as wireless power transmission. I would have to say Tesla for supporting AC, although obviously Edison had an important role in bringing electricity into every day life by his dogged promotion of his electrical products.