Personally, I can't stand French Kicks in the very least. Saw them open for Idlewild at Fletcher's a year or two ago and could not wait for them to get off stage! Never liked their recorded works either and after seeing them, I liked them even less. However, there are some here who like them both live and recorded.
Have seen Calla twice and the first time was very rough and kind of dull. Also with one less guitar player. They were still a very new band at the time and you could see it and hear it in their performance. I wanted to like them so badly because I loved their recorded works.
The next time I saw Calla, they had added another guitar player which they sorely needed to help fill out their sound. This time they sounded so much better and were much more confident and more professional sounding. I liked their performance a lot but wouldn't say they were best of year or anything like that.
Actually, I'd love to go see Calla but, unfortanetly, can't do anything that evening in DC because of having to get up early the next day and hike it all the way up to my parents place for Easter Sunday and my mother's birthday.