Personally I prefer Peggy as her normal version then herself captain carter one, because their minionifed her way too much for 4 years until What if was done. But overall, go with Jane since she was an active in her first 2 appreances, then was absent for a decade and then came back for her mighty thor cancer story and I think they handled it pretty well, depsite the overall flaws with love and thunder. But seeing her comeback was nice, plus Nataile was awesome in the suit and kicking ass and reteaming with thor aka Hemsworth was nice to both lovers as love of thunders.
Thor and Captain Rogers lovers went from confident, and amazing characters to later powerful and stronger heroes in the future.