FTFY.
If you wanna break it down by before and after between the various teams in the PG merry go round then Thomas is clearly had the most impact of the bunch, with a strong argument for Knight being #2 in light of the Bucks collapse. Dragic meanwhile joined a Miami playoff bound Miami team... and promptly helped them tumbled straight out of that position.
Go to the prior year.
Stop trying to kid yourself, and others.