He's coherent, has long-term strategies, his lies are usually not so blatant as to be obvious to everyone who doesn't know him well, and he reaches some of his goals. So yeah, I'd say there's a bit of a difference in terms of competence.It's not an entirely bad comparison and I'm not even sure Dukat is actually that competent. Dukat is an amazing grifter but his entire career is based around being superficially charming and latching himself onto people more powerful than himself while trying to gaslight people weaker than himself into being grateful for his "benevolence."