I always liked Improved Init, but yeah, there's an important difference between "the one loved most by people" and "the one disliked least by people." Hence, American Idol, a show that systematically weeds out anyone who has any qualities that people might sharply dislike, leaving the least exciting and edgy people to win.
And hence the love for Improved Init, the Cleric of feats -- it's not the best one for wizards to take, or the best one for archer-fighters to take, or the best one for tank-fighters to take, or the best one for rogues to take... but it's a good one, maybe in the top ten, for each of those, and the only one that's pretty good for everyone. Clerics don't need Weapon Finesse, Wizards don't need Power Attack, and Fighters don't need Combat Casting.
And hence the love for Improved Init, the Cleric of feats -- it's not the best one for wizards to take, or the best one for archer-fighters to take, or the best one for tank-fighters to take, or the best one for rogues to take... but it's a good one, maybe in the top ten, for each of those, and the only one that's pretty good for everyone. Clerics don't need Weapon Finesse, Wizards don't need Power Attack, and Fighters don't need Combat Casting.