As for St. Catharines, not really a bad seat in the place. All lower bowl, 15$ gets you in the "temporary" seats next to the zamboni doors. Unfortunately lately haven't been too many sell out crowds (thanks DD). Pretty standard arena, not much usually going on outside of the arena, worth doing a loop inside just to see the different tables and stuff. Not sure how your dates work out with other games, but Nov 17th and 23rd are specialty games, "Eras Day (taylor swift thing? idek) and the Teddy Bear toss respectively. Superhero jersey game on Feb 16th as well.
I usually park
here when I go to games, it's $5 cash only on game days, but less than 5 min walk to the arena, and never have trouble getting in and out. There's probably free street parking in and around downtown but I never go through the trouble of taking the time.
St. Paul Street right across the bridge from the Meridian Centre has a ton of restaurants and bars to choose from as far as food goes, Oddbird/The Works/Ludology/East or Wind are some of the places I go, but really can't go wrong with any place you walk into. A pretty lively little area. Also some other thrift stores/record stores/gaming shops/Montebello Park/etc. to explore in downtown St. Catharines as well before a game within walking distance.