Both tell a story about a humble intellectual's journey to become a great financial and banker.
Zhang Xincheng performance in The Justice was so awesome that in my opinion, he single handed-ly supported the drama.
You may like the light romance in War of Faith more than the frustrating fml in The Justice.
Romance aside, both drama were truly enjoyable.
++(imo) The Justice have more clear script and plot that it',s easier to follow and understood compared to War of Faith. When Wang Yi Bo's performance in WoF is undeniable outstanding, but we have Zhang XinCheng here. If you like WoF and have lingering feeling while waiting for next episode, The Justice is a good to kill the time.