While Google+ has the advantage of launching its Pages before Twitter, brands have been using the latter for much longer than the former. Still, it seems that the promise of a bump in Google's search results is swaying at least some companies to Google+.
Socialbakers notes that some brands are adding users four times faster on Google+ than on Twitter. On the flipside, Bright Edge notes that certain brands have not embraced Google+ at all.
Here's Socialbakers' take:
Google+ probably has long before it can beat Facebook in growth, but it already beat Twitter in one important area: Growth of brands. Twitter with its recent releases of new Twitter brand pages has tried to get closer to brands, but is failing to engage them further. Google+ on the other hand has engaged them very well, bringing in much faster growth than Twitter. In January, it was close, but in February, its clear that Google+ brands are growing several times faster.
Here's Bright Edge's conclusion:
With search + your world driving continued visibility of Google+ we expect to see continued consumer adoption of Google+, but expect brand adoption to stay relatively constant. Most of the brands that will adopt and focus on Google+ pages appear to have done so, the next challenge for Google is adding followers. Google+ still has less than 1/100th the number of total consumers interacting with the top 100 brands that Facebook has.
This all made me wonder: how are each of the three companies doing on each of the three services? Let's take a quick look.
Facebook's Facebook Page has 62.2 million Likes. Google+ doesn't have a Facebook Page. Twitter doesn't seem to have a Facebook Page, as the URL merely advertises that you can use Facebook to update Twitter.
Facebook's Twitter Page has 2.5 million followers. Google+'s Twitter Page has 13,000 followers. Twitter's Twitter Page has 7.8 million followers.
Google's Google+ Page has just 168,000 +1s. Facebook and Twitter don't appear to have Google+ Pages (yet?).