I'll ask the question, will you be developing and printing colour negative yourself?
I myself do C41 and RA4 processing as well as for the last year, I have been shooting Neopan 400 almost exclusively for B&W.
Colour is really another quite different animal. You are seeing colour, instead of tones, as the basic building block in our brains.
If you are going to do your own developing and printing you should be able to see minor differences in colour film pallettes, whereas with commercial processing, especially minilabs, you will normally only see major differences.
I myself like and use Kodak's 160 normal contrast, mainly for two reasons. Firstly, it is available in bulk, therefore lowest possible shooting cost. Secondly, it gives a very realistic rendition of colour, compared to quite a few other films I have used, including Fuji Reala, which I have used extensively.
Another plus for Kodak colour film, is consistent colour from batch to batch.
This by the way is all 35mm film.
Mick.