Miner...you're losing the argument simply by the words in the links you're posting.
The links you've shown have specified what pennant each team has won...and that's with good reason; there are several different pennants each team can win.
You can win the league
pennant just like you can win the division
pennant. The reason you won't find divisional pennant winner lists is because that list is freaking huge. Three teams a league every season since the early nineties, two a league since the late sixties. Who wants to compile a list that long?
Remember the movie Angels in the Outfield
? Roger asks his dad what it'll take for them to become a family again, and his father says the Angels need to win the pennant. Well, the movie ends with a division (aka pennant) clinching win over the White Sox, a division rival.