I got to thinking since I usually try to keep a few of my mech builds as stock, usually these are ones that have been referenced or just iconic in lore or just in general. Some of these actually seem to do well though in Pub's and CW. Example would be.
Timberwolf D- The combination of twin PPC's and 4x Streak 6's actually makes this thing a decent light killer. Specially for those lights that think hiding behind ECM will help them, as I remember the other night PPC's disable ECM for a short bit of time, and if they think they can get close enough to try to get behind me ect. PPC to 24 SSRM's usually drives them off with some smoke trailing, or they simply flop over. This thing can also hold its own vs heavier opponents with a decent ability to brawl and advantage of PPC's is low exposure time if good at snap shots, plus the SSRM's can do some decent damage, though usually all over the other guy. The small laser is usually not the go to but it allows for something in high heat situations and on occasion it can get something.
Among a few others I have a Timberwolf Prime in stock configuration I enjoy playing, along with Executioner B and Shadowcat Prime very close to stock and can usually make them work well in Pub's.