stainless steel or titanium brake bleeding valves?

[Adam32]

I was wondering what people thought were better - stainless steel or titanium brake bleeding valves?

Both are anti rust, but I heard that the lower grades of Titanium are quite brittle. So unless I can guarantee the quality / grade of the titanium is it better to go for stainless steel? Also which is the best match with iron calipers, as I read that different metals in contact with each other can cause adverse corrosion.

So what would you go for - stainless steel or titanium?