They aren't, actually. The most experienced and successful scrapper is usually a lioness, pound for pound. A female lion will do what a tiger would hate the most: Neutralize its ability to strike stealthily (big cats don't sneak up on big cats) and take it into several rounds of combat. Tigers have neither the skills nor the experience necessary in this area. A lioness is something any tiger would do best to avoid.
Maybe due to iOS and Mac OS merging eventually.
iOS 8.
OS 10.8 Thundercat.
Mountain Lion. It will be the final step in making Lion more cloud based and iOS-like. After that, iOS and Mac OS will be released at then same time with the same name.
Just my guess.
In a zoo where figthing experience and stealth is taken out of the equation, my money would be on the bigger Tiger. A bengal Tiger and an african male Lion probably wont meet unless introduced to eachother.
OS X Battlecat
In a one-on-one combat, I'm inclined to say a female lioness stands no chance unless it can get the tiger by surprise.
http://www.youtube.com/watch?v=D_PHs-kbypo
With that reasoning "Clouded Leopard" would be a better choice.