I'm assuming olive willy should read, olive woolly bugger, that's a good color/size for this time of year. By your choices, it looks like your talking about streams/rivers, but if you are also including still waters, a chironomid pattern is a must,[maybe a suspender chironomid too].An olive damselfly nymph, and a black leech, are 2 other lake patterns that to me are indespensible. As for other all-round patterns, I would consider a muddler, an ant, a cricket,and a sparkle pupae.