API Naming - Most debated name on the BCL are...

So.. in my previous post, I asked "which two names wa the most debated names on the BCL". Well, the types that got the most debate for its name are:

Nullable<T>
Collection<T>

Surprised? Not suprised? Do you think they are named appropriately?

<Editorial Coment>
Why is there only 2? Shouldn't you tell me "Top 3"?
"Hardest API to name #3" should be available in the next Orcas CTP. So I won't let the cat out of the bag just yet. :)
</Editorial Coment>