which is good ?
i tested orcad and altium designer.
both of them are good. but there is 2 important parameter for you to chose asoftware .
1- how you will make your PCB. and which software is better for that way." in my country using protel or altium designer is more easiar than orcad caz there are a lot of companies which work with protel and manufactor PCB's"
2- how easily you can use the software. and the reliblity of the results.
"i couldn't work very easily with orcad and at the end i found a lot of errors in the final file."
so i think altumdesigner is better than orcad." i don't check the orcad 15.7"