Unexpectedly, Lyric became surprisingly strong after getting Wild Gambit, an accessory found in Tower of Babil.

With 1,914 Luck and 793 Vigor, she hit Topaz Weapon for 24k-27k a turn with Lucky Strike (4mp).

If Jackpot (30mp) is not bug with hitting herself, I wonder how much more pain she can deal. 

*I used her as item/gil drop increaser throughout the game. lol

I tested the other physical damage dealers. 

Nobumasa, with Genji glove and his self buff, dealt 7k-8k x 3 hits but Crit quite often at 20k+. So, no crit, 21k-24k. With crit, damage can go up to 40k+.

*Using Zanmato, he has 1,045 Vigor. I don't know if he will get a better sword after this? 

Siegfried with his Excalibur, 1,704 Vigor, and Flurry (4 hits). He dealt 5k-6k x 4 hits. So, around 20k-24k.

Jasmine, at 1,681 Vigor using Pummel, dealt 3k-4k x 5 hits. Often miss but also often crit at 10k. She relies on crit to catch up to the other in DPS. 

For me, the ranking are: 1. Nobumasa 2. Lyric 3. Siegfried and 4. Jasmine.

I build Vahn as a healer (Speed build) so, he doesn't count here. lol (I did not get his best spear yet.)