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Any of those three would be excellent started bikes, though my vote is for the Shadow. Honda builds a bulletproof bike you can count on, and honestly the price point is going to be a lot easier to swallow than the VStar or the H-D. You should be able to pick up a new-ish Honda Shadow for between $2500 - $4000 depending on what size you want. We have a Shadow 750 in our stable and it's totally sufficient for country riding, but on the freeway it tends to struggle a bit. Especially where we are out west, where the limit on some roads is 80mph. You may want to consider an 1100, which might seem a bit big for a starter bike but they're totally manageable.
Just my $0.02.