Naruto and the genins are definatly not at jounin level.
They dont desplay the knowledge or jutsus required to be jounins, jounins constantly think ahead and i think the only reason that the sound nins were able to beat those jounins that went after them was because of the fact that they ALL had to go level 2 and ALL teamed up on only 2 jounins.

If the sound nins teamed up on the genins and they would have won alot faster then this 1 at a time crap
Put Naruto up against a jounin that knows what they're doing (Tsunade for example) and watch him get cained easily (another example is Orochimaru, sealing up the Kyubi and getting rid of the threat completely)

Naruto may fight people who are of jounin level (Kabuto) and "win" (some call it a win i call it a tie) but thats only because hes meant to win, not because hes at the same level, luck only lasts so long.