Comrades, the Barbarian has never been ashamed of his love for the Baldur's Gate series. At times - in this topsy turvy world - the sum of a thing is greater than its component parts. None of BG2s (especially) manifold aspects were magnificent in isolation from one another. The gameplay was not revolutionary. Neither was the story an epic for the epochs. It had little, if any, choice and consequence.
Conan even failed to get past the first dungeon three times - out of boredom and frustration - before finally breaking out into Amn and the world beyond some months later. He never looked back, however. There is something about that game... and it is not simple nostalgia. The atmosphere, the vibe, the heart, the opulence; call it what you will, the game has it in droves. The combat is good (perhaps even great), the art is good, the story is good (Irenicus is an all-time villain), the CnC is poor, the music is good and the characters are sympathetic.
Taken together, 'good' becomes 'great'. PT, for its part, had terrible gameplay, a great story, very good characters yet... lacked something, in its own right. Arcanum, similarly, but with a weaker story and much, much weaker characters.
There are advantages and disadvantages to each. Clamoring that there is some definitive, objective ranking system for these games is exemplary of childlike naivety. If you enjoy it, enjoy it. Don't let the convictions of nameless, faceless strangers estrange you from such joy. You do not need their validation; nor should they need your assent.