Ox all the way
Winstrol is hard for the hairline (for some of us), very hard on the liver, let's your testikels shrink, gives high BP (also only when you are prone to it).
Ox can be used for 16 weeks (dixit TTOKYO), Winstrol best not to exeed 8 weeks.
With Anavar no ball shrinking (hehehe).
Ox is the safest oral around.
Right now i am on it for 50 mgr/day (third week), did only 5 days 60 mgr/day. and only the prostate is altered. I took care of that with some herbs.
Your choice should also be made considering your age.
So if size is not your main object, go for the Ox.