“American Idol” had it all this season — talented singers, a David Archuleta for the prepubescent crowd, visits from pop royalty, stinging comments from Simon Cowell as usual, and jaw-dropping commentary from Paula Abdul. With all that provided on the show, why have some fans and observers found it a dull slog as the show builds to its David Archuleta vs. David Cook finale on Wednesday?

It seems contestants who were good but not memorable made for only mediocre television, according to show watchers. Where was the drama, the unpredictability, the oddball personalities? Where was the fun? I can’t believe I’m saying this… but maybe the show needs more idiots like Sanjaya?

Such criticism of this season’s show is ironic given the heat “Idol” took last year when Sanjaya Malakar, way more a hairstyle than a singer, held the spotlight of a semi-captive audience. Or remember the reaction when dancin’ man and over-rated singer Taylor Hicks won the title in 2006, relying on charm rather than skill?

Producers of the Fox show made an effort this year to go for vocal gold over glitz, and this is the thanks they get. We want good singers and bad singers, too! Viewer Mike Anderson chimed in with:

“The only thing that kept the entire thing from being excruciatingly boring was (apparent frontrunner) Michael Johns being voted off and the shiver it seemed to send through everyone. Because the talent level was so high, nothing anyone did was surprising.”

Dave Della Terza has long relished mocking “American Idol” on his Web site, VotefortheWorst.com, but counts himself among this season’s disappointed viewers. Dave said:

“In past years people would ask, `Do you hate “American Idol?”‘ I’d say it’s fun to make fun of, it’s so bad,” he said. “But this year, honestly, I’m so sick of the show. … It’s almost a chore to watch at this point.”

He’s hearing the same thing from visitors to his site and seeing it in the numbers, with traffic down about 50 percent. A major complaint cited by Della Terza: The contestants have remained cyphers. In other words, Jason Castro’s dreadlocks showed more character than any contestant.

“What do you really know about David Cook? All you really know about David Archuleta is his dad is annoying,” Della Terza said, referring to reports of backstage meddling.

“I think that’s why Sanjaya was so successful. Every week, he was coming out and showing personality. He flourished in a crowd of people who didn’t have personalities,” Della Terza said.

“American Idol” executive producer Nigel Lythgoe isn’t buying the criticism. He says the talent this year has been “phenomenal” and he expects the David Cook vs. David Archuleta finale will be the “humdinger” that judge Cowell colorfully predicted last week.

Bob Lefsetz isn’t buying it. The music industry analyst says flatly that “the bloom is off the rose” after so many years. “Even if the new Aretha Franklin came on,” he said, “people would say, `Seen it. I’m going to watch something on YouTube.’”