Just so happens that I'm starting to think about my next phone. That it will be an Android beastie I have no doubt, but there's a crop of nice hardware that should be released at just about the right time and I'm in that quandrary of what to go for again.
One of those is the Samsung S4 and just ahead of the announced announcement date of March 14, it looks like some pictures may have already leaked out
To be honest it looks rather like an S3, but the rumoured specs (8-core, 2 Gb RAM, 13 megapixel camera and a slew of hands-free gesture / recognition features) would definitely mark it as a solid upgrade.
I'm also weighing up the Xperia Z and the HTC One though.