The OG Wolverine - Original yellow
The Icon - classic yellow
enter jim lee: Blue and gold
Even the most casual X-Men fan has seen the unified look of the team sporting blue and gold. These training uniforms were one of the best attempts at getting the team to wear matching costumes. Although they didn't last long, the blue and gold are still used here and there. They stand out, even amongst the hordes of super hero teams the 90s gave us.
Classic Yellow II
In the years that followed the Classic Yellow II stayed mostly intact with a few exceptions. In X-Men 25, Wolverine had his signature adamantium claws downgraded to bone thanks to Magneto removing all the metal from his body. This created an awkward time after, where everyone's favorite X-Men was without his main weapon. To remedy this, events unfolded to replace the adamantium in his body in Wolverine #100. The big twist was his body rejected the process. Turning Wolverine into a noseless beast.
This new feral Wolverine Costume and storyline was met with massive amounts of negativity. Marvel quickly and quietly pushed aside this new Wolverine. Less than a year after later, the plug was pulled and everyone pretended like it never happened.
If you had to pick one costume to represent Wolverine it would have to be the Classic Yellow II. It's very similar to the original yellow with a few tweaks to bring it into the modern era. When Chris Claremont left, Jim Lee decided to give Wolverine his "real" costume back. Boy are we glad he did!
The later Movies started to portray Wolverine with less and less clothing. Seen sporting a tank-top in much of X-Men Origins, to lots of shirtless time in 2013's The Wolverine. The running joke is the next solo Wolverine film will feature a fully nude Hugh Jackman. Thankfully, with the trailers released for Logan, the next solo Wolverine film, it looks like our burly hero will be putting the clothes back on.
x-force - Back in black