While fans gather in our All By Myself" Round Table include weekly impressions of Denny, Cristina's decision, Callie and Sadie, memorable quotes and much more ...

1. What was your favorite Grey's Anatomy quote from the episode?

McCritic: The exchange between Lexie and Mark, as the former undressed in front of the latter. Lexie's constant pleading of "teach me" was a) in character, because Lexie isn't exactly the confident, seductive type; and b) HOT!

missingBurke: So many choices, but this Mer-Der quote / exchange was my favorite.

iheartizzie: Even if you're not a fan of Alex and Izzie together, you had to love the "I frickin' love you" speech. I also enjoyed Owen's telling Cristina to go with her gut, then expalining why.

Lexie's "Teach me, teach me" quote won over at least one Insider staff writer.

2. Did Cristina make the right choice?

iheartizzie: Anybody but Izzie would have been the right choice. Can you imagine Denny in the O.R., with his running commentary throughout the amputation? Distracting!

McCritic: Yes. The solo surgery was about safety, not friendship. Meredith semi-apologizing for the fight between her and Cristina was nothing compared to Alex simply listing his qualifications for the procedure.

missingBurke: Much as I love the Meredith-Cristina frienship I would have to say yes. It's about saving lives and Cristina did what she thought was right, end of story.

3. Callie and Sadie: Fun and flirty? Or soon-to-be hot and heavy?

missingBurke: I'm a little confused by this, but that goes for Sadie's background and character as a whole. I'd also like to see Callie invested in a real relationship (with a man or woman, it doesn't matter to me), but I feel like the writers are sort of making it up as they go with her.

McCritic: For the sake of Melissa George's future on the show, the actress better hope for just fun and flirty!

iheartizzie: Once again, the Grey's Anatomy spoilers have me thinking that this flirtation is bound to be just that, while a new female love interest for Callie will appear early next year.

4. On an eye-rolling scale of 1-10, rate your reaction to this episode's use of Denny.

McCritic: As long as Denny is on the show - in an unexplained manner that is clearly meant as a cheap attempt to garner ratings and attention for the series - this answer will be at least 17.

iheartizzie: Somewhere in the 7-9 range. Why does Izzie show no pain, erratic behavior, or other signs of being out of the ordinary besides seeing Denny? And seeing visions would be one thing, but full-blown (mind-blowing even) sex with someone who isn't there? Really? It's astounding what we're being asked to invest in at this point. Can it be saved?

missingBurke: I'd say 4 or 5. After learning what the Izzie-Denny twist is all about I am reserving judgment on it. At least it makes some sense now. And I love when Denny taunts Alex!

5. Will Karev successfully complete the solo surgery?

iheartizzie: It would certainly create some drama if he pulled another choke job, a la the elevator way back in the day, but Karev looks poised to come through. Not only was he Cristina's choice for a reason, but he's more self-confident (as opposed to his usual cockiness) than ever.

missingBurke: Absolutely. Cristina selected him because she thought he was ready, and the best prepared. She wouldn't make the choice lightly, and he wouldn't repay her by screwing up!

McCritic: With Izzie by his side, the new and improved Alex can do anything!

Her mind may be elsewhere (or long gone) in recent weeks, but Dr. Izzie Stevens (Katherine Heigl) has a smitten admirer in Alex Karev (Justin Chambers).

Steve Marsi is the Managing Editor of TV Fanatic. Follow him on Google+ or email him here.