1 & 3 are males, 2 looks female,but a closer view would be nice to see if there's any male flowers also.
you are correct sir. 1 and 3 are males, 2 is female. either toss those two now, or seperate them if you are planning on taking pollen from the males to make more seeds. good luck bro!!
dont bother tryin to save them to make iso unless you have a sepreate area that you can grow them in. unless you don't mind your buds getting full of seeds, in which you can grow a shit load more plants. either way it's a win win. just makin sure you know what your gettin into. hash is always YUMMY though!!!!!!!!!