The "e ta dish" song is very popular. I know many Albanians who have used that song as their wedding song! I think this is true for most countries in the Balkans, they copy each others music. Even from Turkish songs and Arabic songs. I do not think this is a bad thing though, because people get to appreciate the song in a language they can understand. I think it should be done legally though and professionally, so the singer is aware their song is being taken : ) But yes i agree with you it is nice : )
I am not sure if Mirsa Kerqeli is popular, I've heard of her, I don't listen to her much. The most popular singers for "pop" i think would be men: shpat kasapi, adrian gaxha, meda, bertan asllani, nrg band, blero, labi. women: leonora jakupi, leonora poloska, adelina and zanfina, nora istrefi, elvana gjata, genta.
Singers differ in genres, since there are so many genres with Albanian music. Before "popullore" (such as songs that poni sings, which is referred to as turbo folk ( i think this is popular in bulgaria also) so music or folk songs were more popular than pop, but then younger singers began to be highly influenced from the western world and started incorporating these styles into their music. I do not think this is a negative thing, it has helped them prosper a lot.
This is just my opinion though One thing that is smart that Albania does, is when there is contests such as "eurovision" or other contests only in albania, they try to get new and upcoming singers to participate (such as olta boka) i think this is very wise, because it broadens the spectrum for singers and strengthens the music industry as more people will get a chance to listen to newer artists over and over again, instead of just listening to the same popular singers.