...I really should know better, but my memories of Mekton have faded enough for me to be willing to put up with it for the sake of the game concept. I played SWRPG briefly but never really grokked its mechanical action system - otherwise it'd be perfectly reasonable. MEGS/DC I know nothing about. Tri-Stat I could see handling in kind of the way Star Trek Online does, with different 'character models' for different zones and action types.
Other alternatives I'd suggest taking a look at would be Evil Hat's Fate system; I'm not personally familiar with any Mecha rules for it, but it's so easy to hack, and so popular with people who like to do so, that I'd be very surprised indeed if they didn't exist. Or, if you like a crunchier option, Dream Pod 9's Silhouette is probably most familiar as the ruleset behind Heavy Gear and the ancestor of its wargame cousin, but it very comfortably runs their other in-house Mecha Setting, the space-based Jovian Chronicles, which started as a Mekton module.
Either way, MECHA IN WORLD WAR TWO is too sweet a hook to pass up. You have an applicant, sir.
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"V, did you do something foolish?"
"Yes, and it was glorious."
Other alternatives I'd suggest taking a look at would be Evil Hat's Fate system; I'm not personally familiar with any Mecha rules for it, but it's so easy to hack, and so popular with people who like to do so, that I'd be very surprised indeed if they didn't exist. Or, if you like a crunchier option, Dream Pod 9's Silhouette is probably most familiar as the ruleset behind Heavy Gear and the ancestor of its wargame cousin, but it very comfortably runs their other in-house Mecha Setting, the space-based Jovian Chronicles, which started as a Mekton module.
Either way, MECHA IN WORLD WAR TWO is too sweet a hook to pass up. You have an applicant, sir.
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===============================================
"V, did you do something foolish?"
"Yes, and it was glorious."