I went with the original Tunnel Rat, for my Tunnel Rat. And actually, this was the newest-to-me Tunnel Rats that I had, as I bought this figure online and had it home for the first time in December of 2008. (I'm still missing the flashlights, can anyone help?)
Tunnel Rat , at least I think so, is really a very popular character overall. I mean, he's made it into the 'Joe media a lot, and he's had a good number of figure variations (as well as scales). Not to mention his "likeness" origin.
He's got a great, more traditional "army" look, an MOS of E.O.D., and an SMOS of Combat Engineer.
For me, that means he looks good and diffuse explosive situations or engineer some battlefield solutions. (grade: E-5)
For my modern figure force (figures that I can share and play with any age of interested kids), I bought the Renegades Tunnel Rat.
What a huge accessory load on this figure! For the household "junior joe," though, these parts are WAY to small to given to that guy for playing right now. Plus, as great as the Renegades figure looks, it is just not as much fun to play with, I mean, I really dislike those hanging straps.