Just one uplifting ending,. Go for the Ram route. if you new to echo I recommend Carl route first then Leo -> TJ -> Flynn -> Jenna, and don't you dare play TJ or Jenna route first since it will reveal a huge plot!
in my opinion, it depends on who you get attached to.if you're immediately attached to tj, go for him first because his hurt the most for me.
don't go for flynn first, leave him and jenna for last (and play Route 65 before going through their routes).