Till now, two songs of Paglu 2 have been released and it's very difficult to compare between them since they are very different.
However, a comparison between their Paglu counterparts will prove that at present, Paglu2 scores above Paglu.
1) Love You Love You Oh My Paglu: It is undoubtedly the title track of Paglu2, sung by Mika and Shreya Ghoshal. It is quite nice, if not melodious. But it's full of vibrance and youthful energy following Dev's brilliant dancing. It's chirpy and has enough tempo and requisite tune to become a hit. But what distinguishes it from the Paglu title track - Paglu Thora Sa Karle Romance? Two factors:
a) Paglu2 title song can't become a superhit like Paglu
b) Paglu had a more auditory impact while Paglu2 rules in terms of vision. That is, you can turn on Paglu song in your car but you'll need a TV to watch Paglu2 video.
2) Ekta Premer Gan Likhechi: By far, the best composition of Jeet Gannguli. It should give some tough competition to its parallel counterparts since it has to its credit simply BRILLIANT melody, beautiful singing by the music director himself, and wonderful expressions from Dev and Koel. It has equal auditory and visual aspects and Bengali cinema gets a most wonderful number this Puja, no doubt!
In short, Paglu2 songs heighten our expectations from the commercial entertainer. And as the air goes, Paglu2 is going to be much, much different from Paglu.