Ok people, just because they're clones doesn't mean they're exactly the same in every way besides genes. Luke and his clone Luuke are very different. Jorus and Joruus are also very different.
Jango killed several Jedi, defeated Obi-Wan (more or less) and defeated Komari Vosa who had been trained by Dooku and had two lightsabers. He ploughed through the Bando Gora which they thought couldn't be done, he got in and out of the galaxy's maximum security prison, also what they thought couldn't be done. With no weapons, he escaped several gammorean guards, a Krayt Dragon, got his stuff and killed almost everyone in the palace, including Gardulla the Hutt and the Krayt Dragon.
Boba's good, but gets knocked into the sarlaac pit on accident by Han. In the movies according to Lucas he dies, but since this is EU, he didn't do a whole lot after that anyway. He would've died from the sarlaac had Dengar not come along, he didn't fight as many Jedi, he lost to Dash Rendar, he lost to Kyle Katarn, and he lost to Jaden Korr.
It would be fairly close but IMO Jango's got this.