Who will win each conference? Welcome to week four. We’ve been counting down to this week all summer long, and it’s finally here. Tennessee and Florida will headline this week’s college football action (CBS, 3:30 ET). College Gameday will be in Knoxville, and Tennessee will have another chance to shine in front of a national audience on network television. Tennessee-Florida was voted the most interesting game of the week by national voters in this week’s SBNation Reacts poll. The SEC took both of the top spots, with Arkansas-Texas A&M coming in second. Clemson-Wake Forest — a very interesting ACC matchup…