What better way ... how about winning both devices!
Either of these would be awesome, I keep looking for a great tablet to give my phone a bit of a break not to mention having something larger to read books and comics on, game on, etc. so if somehow I got a choice the Tablet would be it. I most definitely wouldn't complain over getting a shield either though.
I would LOVE an Nvidia Shield, it would make all the long flights I have to take so much more enjoyable. The Tegra Note would also be awesome but I would most likely donate it to an orphanage or similar so I could score some Karma points.
I would love either device as my son is now to the age that he likes to play games "without daddy"...so allowing him to have my old device (nexus 7 OG), would be outstanding!
I want to win one of these bad boys so much, it would truly be the best Xmas I've had in a long time if I end up being one of the winners! The Shield in particular would be EPIC!