Good Films for piggyback?

Hello all, i'd like to ask - i plan to shoot the Summer Milkyway in all it's glory over the next few months, what are the best films to use for an slr camera? I currently use Fuji Provia 400F, Kodak Elitechrome 200 & the fuji superia range. Any other 35mm film which is better / or gives very good results?

Thanks, Keith.....

"I do not feel obliged to believe that the same God who has
endowed us with sense, reason, and intellect has intended us to forgo their use." - Galileo Galilei

I have used Ectachrome 400 and had the local camera shop push 2 extra stops (for an effective 1600). That makes for much shorter exposures, which helps me a lot. My favorite lens is a 19mm wide angle, but it is only f3.5, so need that extra time boost. So far, I have been satisfied with the results.

Charlie