Funny how PS1 and PS2 were never the strongest consoles in its gen, N64 and 1st Xbox were stronger, superior for the most part.....
Its not that Sony was always on "top", honestly, MS consoles were the only "high end consoles" since the 1st Xbox (sometimes 2nd place very close to 1st place, sometimes 1st place) if we speak about pure raw power.
BTW Cell was a "powerhouse" CPU but way overhyped and overpriced (selling at a huge loss because of it) and actually not meant for games (thats why they bought thousands of it for "supercomputer" use) and games were hard to develop for. Same/similar how ASIC miners etc. are/were good for mining but not the best for other tasks....
Thats why they developed the games 1st for Xbox360 and later ported to PS3/PC, not to mention that 90% multiplatform games performed better on X360 compared to PS3. There are multiple proofs (comparisons) and interviews (developers) which proves it.....