Welcome aboard, B. Good to have a new face around here, always.
As far as a BEST deck, whatever the application is, that's something that's very much up to the individual. You need to know your own preferences as to what makes an ideal deck for you.
Try a simple experiment. Pick up a bog-standard pack of Bicycle Rider Backs, Tally Ho (either the Traditional Circle Back or Trad. Fan Back) and Bee Diamond Backs and give them a go. The Bicycle and Bee decks are nearly as common as dirt, while Tally Ho will be a little harder to find outside of New York City, but most magic shops will carry them. Break in those three decks, work with them for a little while and see which you like the best. Also, determine whether you like the cards' slip and glide as is or whether you prefer something more slick. Once I know that, I can make many different recommendations for you to try out.
Among the standard decks USPC puts out, I'd say the consensus among most cardists is that they prefer Tally Ho. Having said that, many like using Bicycle for practicing because they're decent and the most cheap when bought in bulk while still being of acceptable quality, and some want Bee instead for the better durability. In terms of stock, Tally Ho has traditionally been somewhere between Bicycle and Bee in terms of firmness, with Bee being the firmest. But just because someone else likes a deck, doesn't mean you'll take a shine to them in the same way - everyone's preferences are unique.
And DON'T feel obligated in some way to go chasing down the rarest and costliest decks in your pursuit for the best deck for you! You're best off getting something that's both affordable and easily obtained, especially when you factor in that it's the deck you'll want to be using most often (and thus will be wearing out frequently). If you want them for your personal fun or pleasure, that's one thing, but for day-to-day usage, you'll be burning through cash at a pretty nasty pace...
(In case you didn't guess, I'm the guy that most people want TL:DR from...
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