That's not a good comparison. Hoopa EX is way more powerful than Winona or any current supporter that can get Pokémon on the bench. You also have to use draw supportes during earlier turns to get going. Super Rod is an item you play at a later stadium, and Brock is vastly superior. It shouldn't be a problem to discard the card at the beginning of the game to get it back later with a VS Seeker. Brock may also be a better fit for certain strategies like despair ray. It can also help Rayquaza recover big time after a Sky Field has been replaced with Parallel City. Brock is also more versatile than Flower Shop Lady.