All of these apart from Dusseldorf and Vienna were tried from Cork in recent years. An EMB 195 would clearly be more suitable than an A320. Vienna was on the EI shortlist in 2004/5 era but the presence of Malev and CSA at the time on Prague and Budapest militated against it. It probably would work as it would have a mix of inbound tourists, outbound city breakers. The significant Slovakian population might also use it due to it's proximity to Bratislava.