If the directions for a frozen food give you the option of microwave or conventional oven, which do you choose and why?

I grabbed a frozen 5 cheese lasagna out of the freezer. I could have nuked it for 5 minutes or baked it for about an hour. I chose the oven.
I almost always choose the conventional oven if I have the time, for a couple of reasons:
One is I think the food just tastes better, but I could just be kidding myself.
The other is it causes me to wait a little longer before I eat.