What primary would work best for my theme?

With TW coming near I'm trying to figure out what to pair it with. For this toon I'm wanting to sitck with a theme type overall instead of what would work the best. Here's a little bit of info on the toon that I've got figured out so far
1)already have the costume
2)going to use the rail road crossing sign as weapon
3)Name: Road Block

What do you all think will work the best with everything in consideration. Overall a build that will do decent at the least, works with his weapon and name. What would the name seem to mean to you as a hero and/or vill to go best with a certain primary?

With the name Road Block, I'm thinking a tank would work the best for it's better survivablity, but if you think I could get a brute or scrapper to live up to the name and expectations then feel free to suggest something for those aswell.

(excuse the spelling and wording, just woke up and trying to get this posted before I have to take off, my fingers moves faster then my brain does this early in the morning)

Thanks for any and all thoughts and ideas!

I'm not sure on what your costume is, but based on the mane and weapon choice, I see two options stand out for your theme: Stone and Elec.

Stone can be used as "Asphalt Armor"; it's really tough, and it can be colored to look like chunks of pavement. It also plays to the immovable barricade suggested by your name. I can't stand actually playing the set due to the recharge, movement, and damage penalties, but if you can it will fit.

Electric works since the railroad sign still has electric cable hanging from it, so it can represent an electric overload that gave you electric powers when your ripped the sign out of the ground.

And then you can always take a minimum fx Invulnerability, Willpower, or Super Reflexes and handwave the mechanics of the set and just rely on your costume to match your concepts.

I was wanting elec armor but couldn't picture it working. Now with the ideas and story line I can see it working, maybe use the stone costume set with some tweaks railroad crossing sign and elec armor. Still stuck though, to many options. Then thought maybe a stone armor brute with fury maybe he wouldn't seem as weak in granite mode. Invul was one of my first picks since with the def bonus from the attack will make it even easier to soft cap S/L. The. Then I get thinking if I go with a brute for the higher damage I would like a set with a aura that deals damage. Sigh to many decisions. I see me changing my mind alot and rolling this toon several times. I have lots of tanks already that are IO'ed out really good. Also have a stone tank and brute. Maybe I'll play around to level 20 or so and see what I like the best. Any other thoughts or ideas?
Thanks!