I only played with lazy once, that was a level 10 game i started with 2 homeworlds in a corner with the zenith trader enabled. I won the game and still had 10 aip, lazy is pretty absurd, i'm never playing with that again.
For maps with more connections I preferred simple, lattice and crosshatch i only played at 7.6 and while the challenge of more fronts was real, i had ~4 chokepoints instead of 2 but was within 6-8 hops of the AI homeworlds so it wasnt much more difficult but it was much longer since i needed to get the fleet back to defend much more. The map types I prefer are simple, maze a, and X, i find between them i can experience the low to high chokepoint games and medium to high distance to ai homeworlds.
I did play snake maps but stopped it because beachheads are so good it made the game long boring and easy. I won a 40 planet snake map on level 10 using the fallen spire thing, it was overall pretty easy since they AI could never threaten me, just long since the AI chokepoints were pretty big, but the above strategy works just fine with larger fleets, 500 human ships can kite 2000 ai ships+a bunch of carriers just fine, and because it was a snake map i never even had to step on the ai homeworld, the spire super duper fleet crushed everything for me.
For the strategic reserve, it's obviously rather strong, but the first pass on AI homerworlds i just ignore it if there's super high threat structures. For that pass i'll temporarily capture a planet 2 hops from the ai homeworld, clear the core world, then load my fleet into transports on my temporary world to drop them right on top of the eye or whatever highest priority target and take out 1-3 more structures before losing my fleet. On the second pass (or only pass in case of easy ai homeworld), without the high threat structures, I can do the kiting by group moving around the outer ring of the planet pretty safely, unless the reserve has a mothership then i'll only lose a few ships before i finish off the posts and command station. Also it seems like spending a few minutes clearing the reserve from the core world will take the reserve down to 70% and doing that before going to the homeworld i havent seen motherships.
For trains, i completed 2 games with them in the past few months, one at 9.6, and i don't think i'm gonna be playing with trains again. With the new info on the wiki (thanks for it wiki guys!) i would know how to game it (leave 1 low threat train alive per convoy), but not knowing i ended up having so many fotresses and super fortresses it was a huge slog, but i was playing with champions and had spire corvettes as bonus ship, so i could just ram the super forts with minimal losses. Overall it's not a very fun plot, hybrids is the only plot i really like and always have enabled. I see it as almost perfect as it is one of the few things where my opponent is actually trying to win rather than try to slow down my winning, it is active rather than reactive.
Anyway, I'll be getting the new expansion when it comes out, i'm curious about the new stuff. Also I hope this thread doesnt come across as whining, i find this is one of the best games available, i've just really played it a lot, and probably will continue, i'd just like to spent more time being entertained and less time putting the game on +10 and still waiting 5 minutes to build whatever, and the time spent building increases faster than the increase in resources when taking planets, so taking more planets makes the game more boring.
Thanks for the replies!