Ignorance =/= Blissfulness. Just as Intelligence =/= Suffering.
Consider this. During the dark ages, when much of the world was being ravaged by the Black Plague, no one alive at the time had any idea what the plague truly was, how it worked, or why it was spreading so quickly. Ergo, they were ignorant about it.
Did this "ignorance" help to lessen the pain they felt watching their friends and family dying all around them? Of course not. In fact, it probably made it worse. It's horrible to have to watch a loved one die of something you understand. It's far worse to watch them die of something you don't understand, namely because you feel so scared, confused, and helpless.
So, um...I refuse either of your choices. I'd rather be intelligent/knowledgeable than ignorant. Especially given that ones level of intelligence does not, in any way, affect their level of happiness.