Asking for good weapons to be turned 1 slot is not going to happen so I prefer more medium/low tier weapons from 1h or 2h sections to turn into 1h/2h with 1 slot for more variety.
Longsword is used quite often but bastard sword rarely used if even used, imo there should be new blunt, piercing, cut weapons that can be used for hybrids, archers, xbowmen, throwers etc etc
(I know this won't solve all the problems with kiting but with more choices on 1 slot weapons I'm pretty sure more people would use one since the 0 slot weapons while decent are very short and low damaging)