Taking one's shirt off is not actually a requirement to be a starship Captain (although it seems to happen a lot - even Janeway took hers off, plus a lot more...).
So lets do a tally..
Archer: constantly taking his shirt off
Picard: yes this happened but there were also scary scenes revealing his chest underneath a silk dressing gown which detracts points
Sisko: never happened.. what is up with that??
Janeway: backless scenes and points added for revealing her chest underneath a silk dressing gown
Let's just study this picture for a while..
What we really needed was some Erika Hernandez scenes.