I've been to Santoro's and Chili John's. I love Chili John's, though I read on Chowhounds that it isn't the public favorite I thought it was. I love that super-concentrated chili flavor. I'm not sure that I could eat a big bowl of it straight, but scooping it up with big fritos is about as close to perfect as I could imagine.
Santoro's, eh. Doesn't please me. It's still there and still popular, I gather. Frontier Wok is spotty. We've had enough bad meals there that we won't go back, but it does seem to be busy.
Papoo's I don't really care for.
For other places in Burbank...boy there aren't even a handful. We eat at Dino's, Danny's Mediterranean (for delivery or take-out), and sometimes at Mi Piace when we are desperate. Recommendations for Eat'n'Park produced very disappointing results. The food was tasteless and took a very long time to arrive.Our favorite place is in North Hollywood: Ca Del Solé, which has wonderful upscale Italian, very gently and subtly prepared and presented. The price is very reasonable considering the level of quality. It's really good. And the service is typically outstanding.
The Tallyrand does decent coffee shop food but I have had service problems there, and there is often a long wait to eat. The chicken club sandwich there is wonderful.
For breakfast, we usually head to Jumpin' Java on Ventura in Studio City, or over to Nat's in Valley Village. Both have a good variety of offerings and consistently good eggs and basics as well. The burritos at Sahuayo on Oxnard near Cahuenga are terrific, and the food in general at Casita Tacos al Carbon is reliably good (two locations: victory & magnolia and bakman & magnolia - bakman's better).
Sorry I can't be much help. Burbank just isn't much of an eating town. No Ho is better, Studio City is much better.