Favorite Welch-era record?

[redbird]

I'm new to the board, so please do forgive me if this is a tired topic. The Bob Welch era of the band seems to be the forgotten or lost era, I know that I'd heard the B&N and the Peter Green records before I ever knew about Bob Welch. So when I started recently getting interested in Fleetwood Mac again I decided to check out and immerse in those albums. I am loving a lot of things about that era, it's by turns funky and sublime. Right now I have Bare Trees on, for example, and Christine's "Homeward Bound" has become one of my all-time favorite songs by her. I also think "Why" is a more gorgeous ballad than "Songbird" (!) and Danny Kirwan's guitar makes me swoon. Bob's title track on Future Games is genius.

The only record that hasn't wowed me yet is Penguin. I'm having trouble deciding which is my favorite of the rest though. What do you think? What's the best Mac album of the first half of the 70's? I never know to include Kiln House with this era or the previous, so, your choice