Extra Large >20cm Enlan EL011 , best quality, finger guard, ease of use.... everything else pales in comparison... most bang for the buck
Large >19cm SRM 9093 , best quality (a little on the expensive side now, or hard to find), L05/L05-1 good allrounder
Medium ~18cm Enlan/Bee L024 best pocket clip (G10)/nice quality , Enlan L03-25 best looking/no pocket clip
Small ~16cm SRM 7106 best quality, 707 is great and I use it more than 710s
Ultra-Small <14cm SRM 6818 (better than the 605 imho)
Fixed Knife Mora Clipper stainless steel (now the Name is Companion MG)
Big Multi-Tool Ganzo G30110 (completely locking tools with bit-set, comparable MTs from Vic or LM are too expensive in Germany imho)
Most knives can be found with cheap shipping (China post ) at exduct.com . 909 and G301 at greatwalloutdoor.com.
Don't forget the Special Price page at Exduct... might save you a few bucks.
@Langcjl: Your are missing out, when you don't try Enlans EL01 (a lot cheaper (~13 at EX now) than the 909 ) , L02 , L05.
I also think that the medium class is the most versatile and perfect for my EDC needs.If I would start my collection all over again L02 and EL01 would probably be my first buys. The 710 is also excellent but a little small for my taste.
I have 2 or more of each: 909, 718, L03-2, 707, 681