Faced with my company's decision to go with Resharper, but being a CodeRush guy myself, I'm sorely lacking some of the more powerful CR features in Resharper - any hope you'll add some of those in the near future (e.g. in v3) ??
What I miss the most is the "structural highlighting", which makes longer and more elaborate code blocks (yes, we still have those at times!) just SOOO much easier to understand
I really like the ability to expand a selection the word, line, paragraph, method level (and back, if needed) easily, with the keyboard. Also the "Selection embedding" is extremely useful
Plus, I really don't like the lightbulb going up at the very far left beginning of the line when I'm way in the middle of the line - it's just way too long a way with the mouse to go poke it. I think in many cases, a context-sensitive option right where my mouse cursor / caret is (a bit like the Office 2007 smart popups) would be extremely helpful.