i would say generally, the egf-1000's I have had, (not the customs) were equivelent in feel, playability and quality to my early ls-120's, .. as with the tokais the higher greco's were only being graded by flametop intensity and PU's.. I dont think that there is a major difference in the overall build quality from the early LS-80 to LS-200 apart from the level of flame and PU's..(and the rarity and cost!! lol)same with the greco's ..it seems that EG 1000 up were all nitro finish, nicest wood etc...the EGF-1200's are about as rare and expensive as the LS-150 and 200, and have as lovely tops too.....its all very much down to personal choice for each individual guitar ...but generally, I think they are both in the same ball park...I think that the Orville by Gibsons are there or thereabouts too...although the necks tend to be a bit less chunky...again ..generally..the thing I love about all this time period is that you get different guitars, very few are crap ..the overall level of everything in the making of them was, in my view, better than you get today, unless you get hand-built stuff...and for Gibbo historics, thats still quite hit and miss...I have had 12 historics this year, and 3 have been great, I have had about 50 high end japanese 80's guitars of all makes, and 40 have been great...I think all the early 80's japanese LP replicas, with the attention to detail and care and passion of the makers at the time, really stands head and shoulders above most modern guitars..
jesus thats my dissatation finished ...lol...
try a couple more of the top end greco's ..if you can find them, and the Orville by Gibsons, and see what you think ...