isida m2 or rail gun m2 or freeze m2?????????????????

Hey Guys, this is Alt account of mine. i have a account with a higher rank i was wondering if you could help me with this big problem i am facing now. if you could just simply vote for what i should upgrade that would be terrific. Hope a mod doesn't lock this topic. i know my big question can be answered by the first poll, but please just go with the floor. thanks all!!! :D