In the truest, best sense solos are always reflective of the person playing them; very artist specific. Essentially, a soloist defines what musical statement to make and the path to get there. The player's technical skills then make that path a reality, making the statement.

That's a generality for sure, almost an obvious point, but to go beyond that and break the "noodling around syndrome" (been there, know the feeling), like MarioD writes... what level are your playing skills?

The path is there but if your skills are "beginner" then we gotta start at the start. If your skills are "advanced" then why repeat what you already know/can do, lets build on them.