edit: nevermind

Google trends is shaky data at best. What I find interesting is the regional data, according to that GOW is very popular in south america and south east asia, but Uncharted is massive in Europe and North America, the two biggest markets by far. GOW's top related term is also "PS2", so that's quite telling. But I can't deny that GOW is generally searched more, even today, and even if quite a bit of it seems to be from developing countries with a lot of PS2s. You make a good point here.

Then you compare social media numbers... well I can do that to:

GOW3 (latest main series game) FB: 364,003 likes

Uncharted 3 (same) FB: 476,209 likes 

Maybe Uncharted 3 bundles included "likes"...

Naughty Dog Twitter: 177, 314 followers

Santa Monica Twitter: 10, 119 followers

And obviously you can just google all of these. 

Your metrics are inconsistent.

Onto bundling... well first of all I think you're overestimating the Uncharted bundles. 

By the end of October Uncharted 2 had sold 1,443,769 

PS3 in the same time period sold: 818,079

So at the very least 600K were sold standing alone, and the real figure is probably over 1 million.

Uncharted 3 sold 1,359,289 on it's first week, with 343,974 PS3s sold in the same week. So at least 1 million without a bundle in its first week. This also shows the franchises growth. 

Second of all, games sell bundles. There's a reason people bought the Uncharted bundle over the 2-5 other bundles on offer. If Uncharted wasn't so good at selling the console, it wouldn't be bundled as heavily. Sony aren't selling uncharted bundles to sell uncharted as much as to sell PS3s.

Thirdly, it's not like GOW is never bundled: 

I'd like to point out the high meta scores for Unchated games too, which does a lot to help carry a game.

yes

Everybody needs a Mario. It's like... free money.

Wonderbook

The mascot is Kratos, since PS2 era. It's the most well-known character and is the game that most associate with PS. Drake isn't as famous, for a lot of people he is the Uncharted guy. Sackboy is a good mascot, but Kratos already took his place.

A mascot don't have to be cute. It has to show what the brand means. Ninty is more "the cute way", so we have the simpatic Mario. MS is more the multiplayer side, shooters, so they have Master Chief. Sony always was about bringing games for adult people, so Kratos is the guy. Besides all that, hell yeah, he is badass!