Achillobator
or, maybe
Diplodocus (i like the way it sounds)
I'd go for Achillobator, a raptor twice the size of a tiger
![Big grin :D](http://www.intensitysquared.com/Smileys/default/cheesy.gif)
Diplodocus could imply that you're huge
![Big grin :D](http://www.intensitysquared.com/Smileys/default/cheesy.gif)
in a way you may not want to be
![Big grin :D](http://www.intensitysquared.com/Smileys/default/cheesy.gif)
Also, Achillobator is a nice obscure dinosaur, you get extra points for that
![ZEGH :M](http://www.intensitysquared.com/Smileys/default/M.PNG)
(yes, I give points now
![ZEGH :M](http://www.intensitysquared.com/Smileys/default/M.PNG)
)