Are you kidding me?
In the AL alone, these guys are flat out better than Loaiza, regardless of the season they are having this year:
Mulder, Pedro, Schilling, Vazquez, Mussina, Sabathia, Hudson, Zito, Santana, Halladay
Throw in NL pitchers and he's not one of the 25 best starters in baseball IMO.
You can even argue that Buehrle and Garcia are better than Loaiza.