Milk vs. Neem (Battling bud rot)

In your opinion, which is best at controlling and preventing bud rot and other
mold issues? Milk or neem?

serenade google it best in my oppinion

I agree. But i'm on a budget and those two are the only ones I have
available.

Bud rot ... very difficult to deal with. Air circulation is important. Spread out the thick leaflets around bud areas, maybe even trim a tiny bit. Kill any buggers, manually by hand if possible. If the bud is very thick, and moisture/bugs/extreme heat are at work inside, no amount of milk/neem/etc. will help you prevent bud rot. You will need to do regular visual inspections of all buds. Bud rot is ultimately unavoidable unless you have perfect/controlled conditions, but you can easily keep the bud rot to 1-2% tops with constant visual check-ups and proper response. I rarely use any sprays on buds when dealing with buggers, its often detrimental. 1-2% neem spray is good. Remove any bud rot immediately to avoid it spreading.

Manual work - kill bugs, clear up the thick bud a little bit for better air circulation and light penetration = best strategy.