In terms of International appeal.. I feel Crypticfate will hav a edge over Artcell . Now U ppz... wanna Jump AT ME!!?
well.... ami eta boltesi.. bcz Artcell er sound engineering e still problm ase.. I still don find the pure Sound and the quality Mixing in many of their trackz. May be
bcz Iv heard CF & DANOB allmost at the same time of ANiket Prantor.
Still... b4 Danob ,
CF had been producing Tracks lik Prem, Odhikaar, Gontobyo, Aunadorer Shontaan & very recently "Krititto" . ALl theze tracks mesmerized me & amused me to see tht BD teo Eto JOss Heavy Metal Band ase. Danob has been regarded by many as 1 of the
Best producted CD in BD History. May Be this Band havnt yet ..achieved as many fanz as Artcell-Black-Aurthohin did & has been doin .ButI Beleive they wud surely come Up & Bangali will start to understand Pure METAL a lil bit more! 
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Moreover, U cant call Artcell An Out-right Metal Band. U must hav heard about "progressive rock" , the genre Probably Artcell is the 1st Band to introduce in BD, just as Black has been known for Alternative Rock..! Id rather lik2 Call Artcell "Progressive Metal" bcz of tracks lik Mukhosh & few others in their 1st ALbum.