Krillin is often regarded as the strongest human alive. It is hard to believe this, at least for me, with someone like Master Roshi still being alive.
Roshi is said to be somewhere between 300 and 400 years old. At the start of Dragon Ball is was noted as being 300. Roughly 33 years have passed (Goku was 11 at the start and is now 44) so that would make him 333. I think it is clear that he purposely makes himself weaker in part to continue being a "hermit" and left alone with his food and lady magazines. Throughout the series, we see just about everyone pass him in strength and fighting ability, or so it seems.
Krillin is a short Munk turned martial artist. In his first tournament in Dragon Ball, we see him get mocked and ridiculed by his peers for being weak. As he progresses through the series, he becomes very strong but never quite catches up to Goku. In regards to being the strongest human, one can find that believable when compared to Yamcha and Mr. Satan but even Yamcha has appeared to be on par with him at times.
Who do you think is the better fighter overall? This being based on personality, strength, and general intelligence.

Roshi is said to be somewhere between 300 and 400 years old. At the start of Dragon Ball is was noted as being 300. Roughly 33 years have passed (Goku was 11 at the start and is now 44) so that would make him 333. I think it is clear that he purposely makes himself weaker in part to continue being a "hermit" and left alone with his food and lady magazines. Throughout the series, we see just about everyone pass him in strength and fighting ability, or so it seems.

Krillin is a short Munk turned martial artist. In his first tournament in Dragon Ball, we see him get mocked and ridiculed by his peers for being weak. As he progresses through the series, he becomes very strong but never quite catches up to Goku. In regards to being the strongest human, one can find that believable when compared to Yamcha and Mr. Satan but even Yamcha has appeared to be on par with him at times.
Who do you think is the better fighter overall? This being based on personality, strength, and general intelligence.