I'd take the 5/10 with 200 IQ since that's still a looks upgrade for me, but only if I could reset myself back to high school finals (and not be severely fucked in the head from years of bullying) so I can go to a proper college and make full use of that giga IQ. If I suddenly got that IQ now, in my mid 30s with a decade and a half wasted and most opportunities behind me it would not be that useful anymore.
If I had to stay with my current age and life I'd take the borderline retarded gigachad because that guy would still have plenty of opportunities just on looks alone while also banging a different foid every day and would be too stupid to give a shit about everything I went through in my early life.
Frankly, just about anything is better than my current 3/10, 120 IQ self since it gives me enough understanding to know that it never even began for me and I will most likely stay a virgin forever and just lets me look back at all the opportunities I missed because I was unable to properly capitalise on my above average intelligence due to poverty and the crippling depression and anxiety inflicted from getting brutally bullied for most of my school life.