The strongest alien in the omnitrix is AlienX. AlienX is an omnipotent Celestialsapiens that had three independent personalities. This powerful alien's main weakness is all abilities including movement has to be agreed upon by two out of three of his personalities.
Original 10 (Ben 10)
Heatblast | Wildmutt | Diamondhead | XLR8 | Grey Matter | Four Arms | Stinkfly | Ripjaws | Upgrade | Ghostfreak
Additional 10 (Ben 10)
Cannonbolt | Wildvine | Benwolf | Benmummy | Benvicktor | Upchuck | Ditto | Eye Guy | Way Big | Eon
Future Aliens (Ben 10)
Spitter | Buzzshock | Articguana
Original 10 (Ben 10: Alien Force)
Swampfire | Echo Echo | Humungousaur | Jetray | Big Chill | Chromastone | Brainstorm | Spidermonkey | Goop | Alien X
Additional Aliens (Ben 10: Alien Force)
Lodestar | Nanomech | Rath
Ben 10: Ultimate Alien aliens
Water Hazard | Terraspin | NRG | Armodrillo | AmpFibian | Fasttrack | ChamAlien | Shocksquatch | Eatle | Clockwork | Jury Rigg
Ultimate Forms
Ultimate Swampfire | Ultimate Spidermonkey | Ultimate Big Chill | Ultimate Humungousaur | Ultimate Cannonbolt | Ultimate Echo Echo | Ultimate Wildmutt | Ultimate Way Big | Ultimate Ben (Possible Future)
Ben 10: Omniverse aliens
Feedback | Bloxx | Gravattack | Crashhopper | Ball Weevil | Kickin Hawk | Astrodactyl
Mentioned only and Power Of The Omnitrix Aliens
Atomix | Snakepit | Sandbox | Shellhead | Toepick | Rocks | Squidstrictor
Fusion Aliens
Stink Arms | Diamond Matter | Heat Jaws
Waybig and Diamond Head can be called the strongest as they both have visibly defeated Vilgax in the episodes Primus and Vengeance of Vilgax, WayBig threw Vilgax out of the planet Primus in the episode Primus and Diamond Head crushed Vilgax in Vengeance of Vilgax.
Humongousaur,
he is the strongest,
Humongousaur is strong but way big is bigger and stronger
Alien-X
Alien X.
the 2nd Ben 10 show is called Ben 10 : Alien Force
power
He's called Rath.
Gorvan is a Tetramand who is voiced by Rob Pauls .
I heard from the ben 10 website the release date is around fall sometime
The strongest creature is Alien X.
ben 10 rocks.he is stronger than naruto and goku.William is the coolest and strongest guy ever.
he wont unlock any aliens it different when its comes to Ben 10 and Ben 10 alien force
I can watch The Gauntlet in Ben 10 Alien Force.
It depends on which one you are talking about? In Ben 10 Secret of the Omnitrix Ben is 10, in Ben 10 Race Against Time Ben is 10, and in the new Ben 10 Alien Force movie that will be coming out in Fall 2009 Ben is 15.
Ben 10 Alien Force has already been aired.
Of course Ben 10 alien force!
Yuri Lowenthal is the voice of Ben Tennyson in Ben 10: Alien Force.
he is humongousaur
Yes it is called Ben 10 alien force vilgax attacks.
on google. search "ben 10 alien force" and then click on images.
Ben Tennyson's voice actor is Yuri Lowenthal in Ben 10: Alien Force.