Google had stop update Pagerank for almost 2 years, SEOs are using other metrics to measure their website:

Majestic.com - Trust Flow and Citation Flow
Moz.com - Domain Authority and Page Authority

However this two are not 100% accurate as well as they can't crawl all the backlinks that link to your website. From experience, Majestic provide more accurate (still not 100%) as they had more powerful crawler than Moz.com.

What matter the most is not the metric that measure your website, but the backlinks that link to your site. And like what Google always said, quality content. You need to have good quality contents, good on page seo, only then the backlinks can push you to the top of Google page 1.

Stop worry about Pagerank, and start working on your on page seo, then focus on getting quality backlinks from authority sites in your niche, no matter they are dofollow or nofollow. Imagine you get a backlink from Wikipedia (nofollow) - you can shoot to page 1 in no time.