Threw this together real quick to highlight the three favorite mecha I've made so far.
Not saying I don't like my Frame Crash designs, but these three definitely stand out from the rest.
Daeg Hagal (Right) - This ol' mecha first started out as a Franken called "Red Feng". That later evolved into the franken "Daeg Hagal" and eventually into a 3D model. The Daeg Hagal is a general purpose prototype that does best on the ground with superior handling. Its armaments are plenty, though they're all typically designed around a balanced performance. Its typical load-out consists of a shield, beam sabers and a multifunctional rifle.
Reyrand (Left) - This is another iteration of the Red Feng mecha, though it's a "variant of a variant". This is based off of a second Red Feng franken, whose backstory was it could phase-warp weapons from a satellite in space right into its hands or general vicinity. This literally allowed it to have hundreds of weapons at its disposal... all of which were swords. Let's face it, put a sword in a mecha's hand, and it becomes cool. Give it hundreds of different sword options? Cooler. And you thought the Exia had a lot of swords.
Here the Reyrand is displayed with its basic load-out; shields on its shoulders with newtype bit-like weapons mounted in them, a pair of swords on its side (and though not visible, six throwable beam sabers on its backside) and a standard sword that it's using to look all knightly and regal.
Altair (Center) - This one's a more recent model I made from scratch; obviously, I haven't even released its design sheet yet! This one isn't based off of any old designs or models, though it does take some design elements from the old Duke 3D model (Namely, a pair of slide-out reactors). It's also one of the few I've designed a fully detailed cockpit for, which I'll put onto the design sheet for view. The Altair is a high mobility performance unit; it features powerful thrusters made for ground maneuvering and a selection of close and mid-range weapons that make full use of that mobility. It'll also have several add-on options called "Assist Gears", when I get around to making them.
And that's about it. I pretty much threw this together for the hell of it to see how the three of them would look put together; mainly because I plan on throwing all three of them into a single story (They are kinda just floatin' out there with no connection to any of my other models, after all).