BI or Alex engine?

[TheStranger]

I'm playing now a campaign with Carthage and I'm in the year 230 and nobody has declared war on me (ok the romans now did cause they besieged Messana). And I also attacked several rebel cities. The campaign before that was with the AS and the only real enemies whre the Ptolies, Saka and Pahlava. I didn't finish it but I have to say that the diplomacy is more stable than on the RTW.exe. I was allied with Hayasdan, Pontos and Baktria. So the alliances hold much longer I suppose. Btw. I'm playing on hard/medium.