Use whatever client you support the most yourself, just like tokeweed said. My personal favorite implementation now is Bitcoin Unlimited, however I also support Bitcoin Classic, since Bitcoin Unlimited is also compatible with the two megabyte increase proposal by Classic. Much has changed since I wrote the OP, it has obvously become somewhat outdated. Check out my more recent posts here on bitcointalk and especially on bitco.in. I will also be writing another article soon relating to the blocksize debate and its more recent manifestations.
You've bumped a dead thread in order to promote BU? Seriously, stop advertising for your stuff everywhere.
First post that I have made in weeks, and you say that I am advertising for BU everywhere?
This is an old thread, and yes I have lost much hope for Bitcoin, it is not over yet though, still waiting to see how it all plays out. I will continue holding BTC, along with a multitude of alternative cryptocurrencies, so I am sufficiently hedged if Bitcoin chooses not to scale. It will simply be overtaken by alternative cryptocurrencies that can scale directly. The origanol vision of Satoshi will survive in the alternative cryptocurrencies regardless of what happens to Bitcoin.