Well I have stayed at both the Tropicana and the Hojo and prefer the Tropicana. Here is why (and this is based on my experience just my opinion):
Tropicana room was cleaner, newer and the bathroom was much newer. Don't get me wrong, the Hojo was fine, but we had a couple of no biggie issues, food left in frig, mold in the shower that was never taken care of (lucky I had my chlorox wipes).
Tropicana staff was more attentive. They just went out of their way several times for us. Also liked it that every time I was out and about I saw people washing windows, sweeping the parking lot, pruning the trees etc. They just seemed to really make the effort. Also, they were all very friendly. Hojo staff was great too, just didn't notice them doing the spit and polish as much.
Closer, closer, closer! This is the part where I usually get yelled at, but to me the Hojo walk is a bit far. We take midday breaks and it just got sort of old. And I know its the same distance as the DLH and that never bothers me but whatever. Being right across the street is just the best.
Free breakfast. Its not gourmet, not even close but its free and every bit of money you save is more money to drop in the parks. No free breakfast at all at the Hojo.
The one place where the Hojo does outshine the Tropicana is the pool area. It has two pools, plus a kiddie pool and spray jet area. Howevever, the Tropicana pool area is nice (but small) and has a huge hot tub. It doesn't have the nice grounds of the Hojo but does have some pretty landscaping touches.
Also at the Tropicana you don't have the worry of getting a freeway room. Some of the rooms at the Hojo are about 20 feel literally from the I-5. Way too noisy. The tropicana does have some rooms nearer to Harbor, but not the highway.
Frankly, since I discovered the Tropicana I will probably never return to the Hojo. Because if I did every time I passed the Tropicana I would be peeved at myself for not booking there! The only reason I am not staying there in June is because the mini suite at the BWPPI was too good to pass up and I want to try a new place just for the heck of it. And its only two nights so I don't feel like I need as much of a safe bet. Any longer and I'd be at the Tropicana because I know I would love it. The Tropicana is a motel, its not fancy but its super clean, and location cannot be beat.
Hope that makes you feel a bit better. Also, check out Tripadvisor, there have been some very nice reviews of the Tropicana lately. Its been newly remodeled in the last couple of years or so and the reviews show that. There have also been some very good reviews of the Tropicana here on the dis, including the one I posted in February of last year.
Oh yeah, forgot to add it was very quiet, the beds were comfy and had really nice linens and blankets for a motel. They were all clean, I noticed these big bins of clean bedspreads and blankets in the housekeeping laundry room (door was open). I asked for an extra blanket one night and when the guy brought it to me, it was warm and clean smelling from the dryer. I have this sort of thing about hotel bedding (too many Dateline episodes I guess).