which sportsbook has the best odds on a regular basis?

Feels like every time I check out new lines, the odds are always a shade different everywhere. Some books tighten up favorites way too much, others seem looser with underdogs but then sneak in bigger vig on totals or props. I've stuck with a couple for years out of habit more than anything, but lately, the numbers just aren't doing it for me anymore.

I've got this spreadsheet going with line snapshots, and some places are consistently worse, but the "best" one is never the same two days in a row. Been burned chasing bonuses so I'm more into solid, steady odds than chasing some promo. What’s the process for figuring out where it actually pays to be loyal, if anywhere? Loyalty’s only worth it if the numbers stack up, right?