There are roughly 170 billion galaxies in the observable universe. In the not so distant past, "earth like" planets were the unique or 'freak' anomaly. And it still well may be but now estimations are 40 billion habitable planets. Which means, spastically they are in the right size zone and right position relative to their sun which might or might not let them develop an atmosphere and so on...
Intelligent life is a whole different matter, but is there not even a single strip of grass on one of them? Let alone a microbe? IT will be a long time before we will ever now probably, and If I were to go out on a limb of massive speculation, I would suggest that odds of finding intelligent life might be higher than finding non-intelligent life just because of the fact that they might be looking too and in the latter thats not the case.