A) The Disneyland Express *Its like a Grayhound bus* but it can make many stops to drop people off along the way not taking you to your hotel right away.
B) There is Super Shuttle *Which is a van that holds up to 8 people* Smaller then the Gray hound style bus obviously but depending on the size of your party you may not be the first one dropped off at your hotel. You might luck out and be though.
C) Take a taxi from the airport for around $40 one way. It takes you directly to your hotel and you dont have to drop off anyone along the way. I have taken this on my past trips and this is my favorite option from the John Wayne Airport. Depending on the size of your party this can save you money. Specially if you need to get a taxi van because your party is a little larger but can all fit into one car. Still only $40-45
We were there in January and used the Super Shuttle for several different trips. They were on time, courteous and friendly. I would recommend them highly.