Just had a quick look at the stats,not a huge difference between them. Both played 22 games.
3 tries each, Lichaa has 7 TA to Degois 2. Lichaa averages 33 m per game Degois 20 m.
Lichaa is probably a bit better in attack (not massively).
Defence was interesting, Lichaa made approx 962 tackles , De Gois only 745. Maybe Lichaa had more game time.
Tackle success rate is Lichaa 96% Degois 92%
Obviously stats don't tell the full story, like does Lichaa lead his sides line speed like De Gois ( but this can be coached too). What is there service like? Does the coaching structure restrict them to show what they are capable of in attack?
Degois has obviously peaked while Lichaa has more room for improvement.
Degois would be cheaper.
Lichaa probably has the defensive ability to suit a BA coached side.
Update as Pou said Lichaa is bigger 183cm 90kg Degois 178cm 87 kg.