'Best' is very subjective,
but my opinion.
1:Titanium.
2: Steel.
3: Aluminium.
4: Bamboo.
5: Wood.
6: Exotic alloys like magnesium.
7: Cotton wool.
8: Carbon. (this should really be saved for F1 undertrays.)
As far as Reynolds goes I think it currently is, 953, 931, 853, 753, 725, 631 531, 525, 520. Though they may not be strictly in that order as it would depend on application.