lots of 2 starters this week--who to use, WHIR

[djfoss73]

so i have a 7 man rotation for the moment, this week 3 of them have 2 starts in a league that limits to 8 starts a week-who do i use? WHIR to the best of my ability (first year fantasy, but i know baseball pretty well).
Felix Hernandez @ A's (Sheets), vs. Padres (Latos)
Jon Lester vs. Twins (Liriano)
Jake Peavy vs. LAA (E Santana)
John Danks @ Tigers (Bonderman), vs. Marlins (Johnson)
Shaun Marcum vs. Twins (Pavano), @ Arizona (Valdez)
Mike Leake @ Braves (Hanson)
Brad Penny vs. LAA (Piniero)
weekly H2H, categories for SP are W, QS, ERA, WHIP, Ks

so obviously hernandez gets both starts, especially in pitchers' parks, peavy gets his, lester gets his...worth sitting danks v. tigers, penny after a bad start sunday, maybe marcum in one of his? my inclination now is not to start danks in detroit, and maybe sit leake for a week if only because of all my SP he's the one i figure is most likely to have a week-ruining start, but thus far hes looked very solid so maybe thats just my distrust of rookies. any input appreciated-