No question - realism! I just love the down and dirty real world (or real world plausible at least) vehicles like the Humvee, Warthog, etc, especially for the Joes. As for Cobra, I can handle a slightly more futuristic feel, but once you get into Star Wars territory, you've lost me. Nothing looks better than a realistic military vehicle modded to look battle worn and dirty!

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"The future's uncertain and the end is always near." - The Doors "Roadhouse Blues".