Pretty much the extent of my knowledge of modern air combat knowledge is [url=http://www.youtube.com/watch?v=rxqTMVkfJkA]this movie[/url], which I saw many years ago in an IMAX theater and was completely enchanted by. So I don't know much and was going to come in here to judge on looks anyway, heh. And on that count I think they're pretty close, both handsome aircraft. I think the SU-27 has a significantly more handsome rear (dat ass) but the F-15 has the edge everywhere else. Neither, however, are as handsome as the sexiest aircraft to ever take to the skies, pictured above. Oh, baby, giggity. BTW I dunno if you've ever studied Korean air combat, but I am now sold that it the most bizarre air war ever fought by the book [url=http://www.amazon.com/Crimson-Sky-Battle-Korea-History/dp/1574888412/ref=sr_1_1?ie=UTF8&qid=1370650215&sr=8-1&keywords=crimson+sky]Crimson Sky[/url]. The book isn't terrific, but it's easily good enough to recommend. A lot of fun. Makes me want a friggin' Battlefield Korea game.