Most badass looking characters

Líf

Surtr, Hardin, any Hector, Zelgius/BK, Laevatein( thats how you write it right?) any Dorcas...Zephiel, Arden a bit... and the new sword unit that appears in Book III (forgot the name)
Edit: IMHO ( didn't care enough to search said unit's name..Merry X ;)

Walhart for sure.
Honorable mention to Legendary Ryoma. He kinda reminds me of Madara, heh.

I don't know what it is about Navarre. I just love the guy. Along with his design.
This man looks like he takes no shit. Red really is his color and his wavy hair and slim sword just accommodate his outfit perfectly, he looks even better in Warriors. He really looks like someone to be feared, just like he is in the Archanaean canon.

Lilina damaged art is my favorite.

Ho man don't get me started on how badass and awesome Ike is I could write a 20 page essay on that shit. Easily my favorite fictional character of all time, and artist Kita Senri does an amazing job of visually representing that badassery.

I only wish Legendary Ike was as top tier as he used to be :(

I think Linus deserves a mention as well. He looks really badass

Wrys, hands down

I've got to say male grima looks pretty menacing but I still think that xander is the most baddass for me.

Ares.

You can't tell me he doesn't look like he's gonna beat someone's ass with a bouquet. If that isn't badass nothing is

Linus. That’s it.