What is the best method in terms of ease of travel and cost to travel to Anaheim from San Francisco?

From what I have heard, a plane ticket will be approx the same in terms of cost as a plane ticket but substantially quicker and some times cheaper, although then I guess the required addition of another mode of transport to my destination would be greater from the airport than the bus station.

(I plan to stay around Knotts, if that helps)

Umm ok, clearer.

I am mainly looking for ease of travel, but obviously not hideously expensive.
I know that taking the train is a pain due to all the connections required to get from San Fran to Anahiem.

As I am a tourist, I don't know anything essentially about the transport between the two locations or the required transport from the airport into Anaheim etc