I remember when Call of Duty 4 first game out. Many gamers (even those rascially PC gamers) where genuinely excited about this game and what it stood for for the FPS genre.
It's interesting to see the franchise today and how, despite it's huge popularity, there's a lot of people who loathe the series.
I actually didn't even know about Modern Warfare until World at War came out....and I fell in love.
The thing is, ALL popular games get their detaractors. a quote of my own is: "The amount of irrational hate any form of media gets is directly proportional to it's popularity." That's why so many people hate so many popular things, and why big games like Call of Duty or big movies like Avatar have people worldwide who positively loathe them.
Hell, I hated Harry Potter for the longest time simply beause it was popular and I didn't feel it deserved it (at the time only the first two books were out and to this day I think they were both trash).
The first two books aren't that great. I also tend not to follow hype trains, my mum bought me the first two HP books a few months before the third came out, back then I thought they were quite good (though I was about 12) even if i accidentally read the 2nd book before the 1st. I still think the 3rd book, and the last book are brilliant though, and 5th and 6th are great too... not really worth the amount of hype they got (but most hyped things aren't) but still very good reads.
Now the films, my God the first two films are two of the worst films I have watched all the way through (though the first time I started watching the 2nd one I didn't watch all the way through, only since I bought the series from 1-6 shortly before the last two came out, and it would have felt odd watching the later ones without watching the first two properly)
As for discussing more people's 50th choice, most I haven't experienced... but I did play the free demo of Plants vs. Zombies with Chrome, I found it quite a good defence game, I expect had I played the full version it would come 3rd behind desktop and whiteboard tower defence. I tend to get bored after 2-3 tries with games like that though. (And didn't think to add flash games into my list, otherwise I think The Space Game might have made it to the top 50)
I also totally forgot to include the Sims in my list (though i don't think I would have put it in the top 50 anyway) it's been a while ssince I played it, my main interest was just in building awesome houses more than the life side of things though.