If you want something that feels bigger, then of the 4 you list the GB2 appears to be the one if you don't mind the small forward belly. Personally I find the longer belly like the PM2 more useful. The overall length of the Advocate and Slyze are both close to the Manix 2 and PM2; as a matter of fact the Slyze is slightly shorter (overall) and lighter than a Manix 2 in G10. But here's another option, have you considered the Military? It's a definite jump up in size from what you already own but still lightweight and pocketable; the blade geometry (particularly the belly) is IMO one of the best. It would pair nicely with the smaller knife you carry. The Military is one of Spyderco's most popular models for a very good reason. I have one in CF CPM S90V which I sweetened with a 3rd party deep pocket clip. More food for thought...rybu0305 wrote:I want something that feels a little bigger than my other knives. I have handled a GB2 and it definitely feels bigger and longer. I think the Advocate will feel similar. But when I look at pics of the Slyz beside a Manix or PM2, which I own, it doesn't look bigger at all, just more cutting edge.