My team as it lays out now is how I think each positions best 1/2 player.
C : Weiters. I value the switch hitting, 80+ power vs both sides. His pci doesnt matter on AS and hasn't bothered me yet on HOF. 99 arm 95 blocking makes him a wall behind the plate.
1B: Musial overtakes Thames as the best 1B in the game, especially once prestiged because he gains silver defense at first.
2B. Cano/Prestige Biggio. I prioritize defense here so I run prestige Biggio in his natural position for the diamond shield. If you haven't completed his prestige Cano is the better option.
SS. Rollins: switch hitter with a quick swing, elite baserunning speed, defense and arm, I'm working on his prestige right now to see the difference but he's already got easy power with a butter swing. I've finished prestige Yount as well and i think hes a great option. Would really suggest diamond defense here.
3B. 96 Prestige Chipper to me is still the best option, prestige gives him Silver defense, which plays. I have Prestige Sheffield on my bench too as a second option but his shield stays bronze, hes an elite pinch hitter as well.
Current outfield is Collection Trout-Prestige Mantle-Prestige Walker
Walker will eventually be replaced by Griffey probably, Musial for Frank and 96 Chipper for Sig Chipper but for the most part my teams done.
Rotation is
Maddux(more than halfway on his prestige)
Prestige Orel
Prestige Marishal
99 Feller (hes as disgusting as you think)
97 Wood(like 40-50 innings and ~40k off prestige)
One thing I will note is prestige vs not prestiged changes the value on a lot of cards so it just depends if youre comitted to the specific grind.