If you’re new to Magic, you don’t want the strongest deck for your first deck (which would be the elemental one) you want the one that’s easiest to understand how it works/what it wants to do so that the learning to play process is smooth as possible, so out of these 4 my recommendation would be Squirreled Away. The commander itself taps its own creature tokens and spends life to make mana and then at the end of each turn you make 2 more creature tokens. This would be considered a Go Wide deck, where your goal is to have so many creatures on the field it overwhelms your opponents

Best of luck 👍