It's not just my personal opinion that the C70 is best, the people at techpowerup think similarly. I found these reviews, which cover two of the cases - The Switch 810 and the C70. Both are written by the same author, which only makes it easier for you to compare the two cases directly. Here are the links - Corsair C70: http://www.techpowerup.com/reviews/Corsair/Vengeance_C70/ and The NZXT Switch 810:
http://www.techpowerup.com/reviews/NZXT/Switch_810/1.html If you are truly thinking about buying one of these cases, then read the reviews thoroughly. OK, I must admit, the C70 is a bit pricey, but trust me, you won't forget it, because that will be the part of the PC, which you'll be seeing everyday. Yes, the window has holes in it, which might cause it to lose some aesthetic value, but what is lost by looks is regained by practicality, quality and overall design. Word of advice, my friend built a new computer and used a case from cooler master called Elite 430. The case had everything he wanted - a side window, it supported large video cards, all-black interior, but the case itself was a bit flimsy, it's really lightweight and he is not impressed by the overall quality. Now, he regrets going cheap on the case and wished he'd gotten himself a HAF 912. On the other hand my CM Stacker from cooler master has only made me smile for the last 5 years. Just remember, whatever choice you make, it's your computer and you'll be the one who sees it everyday.