Do you see the trend?

Everybody likes the ones that are bigger.

If we're not going to use the awesome original logis for 1-6
(Actually, I only know that 1 had the coolest logo ever. I don't recall whether 2-6 looked cool, but I know that these I'm seeing are new)
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But of the choices, let's be realistic.

1-8 just have a single little graphic.
7 & 8 have bigger graphics that apply to the game, so they're slightly better than the preceeding ones (And I mean really apply to the game. The others are kind of abstract.)

But really, it's 9 and after where large graphics and cooler looking artwork comes into play.

And the votes show it.

The logos for the older games only seem to exist so the older games don't feel left out.

Or maybe so they don't look too cool.