when choosing clients the only way to find the best for u is to pick some and try them out. if you need help with using bt, there are many faq's on the net. just use google to find them
it all just depends on whether you can find direct links. usually if i can find direct links i use them and use bt to hash check the file to make sure the file is not corrupted through dl. otherwise i use mIRC or bt to dl the anime