webOS
I use webOS as a daily driver. I have been a webOS fan since the palm days and continue to use it today. True multi tasking and the ability to view flash media sites without issues as well as solid WiFi connectivity anywhere, anytime is a big plus for me. Lest someone tell me to try android, I have been using android builds since donut and have Classicnerd ICS installed on my touchpad but I still use webOS as my primary operating system. There are things that android can do better than webOS but the reverse is also true. I don't really have to have cutting edge software on my tablet. I need a tablet that just works. Those that are familiar with webOS know that there are webOS apps to handle most any task we might have.
Most people bought the touchpad during the firesale in order to put android on it. I purchased the touchpad to run webOS and have not found a reason to change my mind. I'm a small business owner and was able to run my business for over a year using the touchpad and webOS with very few issues, most of them with not having the ability to receive faxes. I ran my accounting software, databases, and invoices with the touchpad and a wireless printer. ICS is nice and android offers many more apps than webOS but most people only have about 35 core apps that they use on a regular basis. Webos meets my needs for a tablet, at present. If I find the need for an android tablet, I will probably pick up a transformer prime. Until then, webOS just works, and works well.