I use jQuery because it’s sickeningly efficient, beautiful, and succinct. I use YUI because it has well tested, well designed, well documented Web UI components. 

I use them both together, but I feel a horrible sense of waste as there is so much overlap.

YUI 3 provides jQuery like selection and chaining capabilities, but I’m so sold on jQuery I’ll have a hard time dumping it. 

I feel jQuery taught me intelligent javascript, and to leave it would be to stray from a growing path of knowledge.

So here’s my javascript pony wish: YUI should adopt jQuery as its core engine and write YUI 3.0 on top of it. 

Wouldn’t that be fantastic? Best of both worlds. I don’t think it’s that far from possibility actually – the YUI 3.0 base looks a lot like jQuery. 

I brought it up with the YUI folks at the Yahoo internal conference last year. They of looked at me funny, as in why would we do that?

Hmm. I’m still wishing for that pony.