Daniel Jackson: Favorites

Sport: While not terribly interested in sports, he once bet on curling, and won the big bonspiel. At least, that's what Jack told Sam, although she had another theory (4.18 "The Light").

Drink: Coffee, definitely.

Breakfast food: Waffles (4.6 "Window of Opportunity").

Candy bar: 5th Avenue (Stargate, the Movie). He also enjoys SGC-issue energy bars (4.08 "The First Ones", S7-07 "Enemy Mine").

Cookie: Chocolate walnut (3.10 "Forever in a Day").

Animals/Pets: Animals in general seem to like him (Stargate, the Movie). He does keep a fish tank in his apartment (1.12 "Fire and Water") which now is in his office, presumably taken there by Jonas, who seemed to think they were his fish, but at any rate, returned custody of them to Daniel as he left for Kelowna (7.02 "Homecoming Part 2"), and has mentioned minor attempts to communicate with dogs (2.19 "One False Step"). Jack is very fond of dogs and Cassandra has one, courtesy of the colonel (1.15 "Singularity"). So presumably Daniel has had some contact with them, but how he actually feels about them is unknown.