Neither. I'd use regular Allen key style replacement skewers and secure the wheels with a D lock + cable. Way cheaper, more versatile (particularly if you've more than one bike you wish to convert) and it's not the end of the world if you happen to forget/lose the key.
My insurers (household ones as they covered the bikes) sent me allen bolt ones when they introduced an endorsement to not cover wheels or saddles with QR.
No problem as I always have allen wrenches with me on a multi-tool.
Agree with Mickle about security, and since I've been using an alarm padlock instead of a dedicated alarm I lock the cable (securing the front wheel) to the D lock (securing the rest of the bike) with the alarm padlock which should sound if the cable is cut.
There's a limit to what you can do to secure a bike, and if you've been diligent the insurers should pay out.
God another person who doesn't understand security. You don't make something impossible so steal, you just put enough problems in the thief's way that they decide to go for an easier target. What I want to do is make my bike the least attractive bike to steal where ever I lock it up. So yes I have 2 locks but I also want to make sure that of someone else has 2 locks that my bike is even less attractive that that. Standard nuts & Allen key skewers have 0 impact from a security front, a security skewer however does have an impact on things.
Insurance is the last thing on my mind if I'm on a different site & my bike is missing or unrideable.