i have 110's from 1967 /68 (point down to read 1 line Buck ) to 2003. there are indeed many small changes. some times i take them out jest to look at and see what is diffrent as in response to your question, a pleasent thing to do...
the older ones are lighter, the back side of the blade has a sharp corner near the hinge catches dust in the lock and some of the blades would wobble after a time from realy hard use and no the wood did not always match from side to side, some like this and the blades had that hand ground, hand finished, wonderfull hand made look . then 110 then got heaver and more rounded, a - and a + to me .... the knife started to curve more and fit and quality got better and more uniform. todays handles are shaped difrently in the boosters and dont have the corner not stuck out as a ugdly edge on the back of the blade and except for type of blade and scale material all look exality the SAME...oh yes the stock blade changed both in shape and type of steel... blades are sharper - the steel of the 110 is diffrent as like to a diffrence in the brass hard to see but there humm ...sharper and with jest as hard a temper- sure why not!!...
but back to your question.... better today? you have to ask first - better for what ?! hummm... for me- as a every day user for NON hunting use= cutting rope, boxes,wood and skining wire i take the older thicker edge with 440... i will take the newer ones to hunt, dismember and skin with and wish them a bit trimer....
i learned to sharpen a knife in 66/67 reading the buck instruction pamplet and can get one face shaveing sharp -free handed and 440 was no chalenge to sharpen

....the newer ones DO freshen up in use easer and quicker and it is a good thing!!! they dont take the skill/time to get jest as using sharp as the 440 which is a good thing also...
NOTHING like the 110!!!
(tho pluma comes close for useing but not looks... and to start something...for a big knife like the 124 its is good useing blade and is a realy realy good looking knife, i have some, - BUT for to USE, i like what i made/make better... hobo crude looks but god offley dammmmm hard to sharpen and sceary sharp when there and stay that way a long time... wish i could make some thing equvleant to the 110....
respectfully yours, dave