Unlocked Sebastian and Morgan only, so maybe my opinion will change later.
I liked Morgan because he felt like the only one who was 'serious' about Heileen... John struck me as being too immature, and even though Jonathan seems OK, his similarity to John was a little off-putting for me.
I actually think Sebastian was the best-looking love interest, but I did not like his ending as much, or
Finally, and completely (or almost completely) unrelated, playing Morgan's romance arc got me very excited to see how Juliet's romance will be in the yuri version. It was nice to see more depth to her than just 'angry yar yar I'm going to beat you up in a fight!'