Here is the famous Hyrdoguy thread:
http://www.disboards.com/showthread.php?t=1162599
Park hoppers at DL are a bit cheaper than WDW ones and you don't need the time to see and do everything at DL you do at WDW. You can have a very thorough trip in three or four days (depending on time of year) at DL whereas a week feels too short for me when I go to WDW. Also, park hopping is standard with any ticket that is two days or longer, no need to add park hopping like the WDW tickets.
DL does scale down their entertainment during the offseason. The fireworks and Fantasmic will only run on weekends off season and the Electrical Parade (much like Spectro) doesn't run at all off season. So its essential to have a weekend night in your visit so that you can see the fireworks which are incredible.
I agree that there are plenty of nice offsite places to stay for under $100. Just be aware that these are older motels, no theming or landscaping (except for the Hojo that has some nice grounds and is very close, but nothing like the grounds of the WDW mods and values) and small, older, square pools. They are nice and clean and can be as close as a 2-3 minute walk to the gates but they are not resorts. If you click on the sticky at the top of this board, there is an arial map that shows how close many of the motels are to give you an idea.
If you can swing it, the three onsite hotels at the
Disneyland Resort are all very nice. Comparable to the WDW deluxes (the Grand Californian in particular), they offer the amenities of a full service hotel with themed pools, slides, interior corridors and that Disney magic. But they are not cheap. If you go offseason however deals can be found and they also offer
AAA discounts.
If you can, fly into John Wayne (AKA Santa Ana, Orange County). Its very close. Long Beach is also close and LAX and Ontario are further but still only about a 45 minute drive (depending on the traffic).
I think DL is wonderful and very magical. Its the original and many of the rides are superior to the WDW counterparts. It doesn't have that same resort feel that WDW does but its still easy to get lost in the magic. DTD, the three onsite hotels (and many of the offsite ones) and the two parks are all right together. No buses, boats or ferrys to get around. I really think every Disney fan must see Disneyland at least once. I think the smaller size of DL is a strong point, not a detriment. And there is a lot in the two parks. Very close to the same number of rides and attractions all four WDW parks have. Disneyland is charming and DCA is continually improving and has a lot to offer. Namely Aladdin, which is the best live Disney show I have seen at DL or WDW as well as some very good headliner rides. I don't think Disneyland ever has to take a back seat to WDW. Its smaller and different but not a lesser destination in my opinion.
Its really nice to combine a trip to DL with a trip to San Diego so that you can enjoy those sites and attractions as well.
Good luck with your decision!