I've had an opposite experience. Most of the video games I've backed have turned out well, but the only board game I backed was quite meh.

The board game was Mottainai. We did play it a few times, but my girlfriend found a strategy that works really well but makes the game boring (always just pray on your turn) on her first try.

Data for video games:

Great: FTL, Torment: Tides of Numenera.

I didn't back the Pen and Paper RPG Numenera which Torment is set in, but it sounds really good.

Good: Chaos Reborn, Sunless Sea, Dreamfall Chapters, Elite Dangerous, Broken Sword, Pillars of Eternity

Bad: Godus. He made several of my favourite ever games, but Peter Molyneux is not getting a pre-order from me again. I can only assume that someone else was the talent at Bullfrog and Lionhead.

Not finished yet: Battletech, Maia (early access is available and looks good)

Never made: Unwritten. This was a victim of the US medical system. A refund was offered.

Failed to meet target (therefore payment not taken): Ars Magica Video Game, The Ship: Full Steam Ahead, Nexus 2.