i check too many sites but no one give an answer .. some of them say the Cell is better others say Xenon is better ... also know that all i need is a easy explanation cuz im tired of all this technical talk.

First of all, what is xenon?

There is no simple answer. You have to understand a lot of technical stuff in order to be able to compare them.

I don't think there is an unbiaised answer to this questions, except:

It depends.

 the 360 cpu.

The Cell.
It has UNLIMITED powaz !

No seriously. It's all about opinion anyways, but the cell was designed with super computers in mind and is between 8-40 times better than a pc cpu.

Apples to Oranges imo. the cpus are so different.. Xenon is easier to work with and fits into programming models adopted with PC and Wii. Cell has potentially more computation power (very powerful single precision floating point computation), can be given some of the work that the gpu would otherwise do (bone weighted animation blending which one might use vertex shaders on the gpu for).

PS3 Cell of course. Much much better (8 independent processors vs 3 cores at same clockspeed, the SPEs can do a much better job than the PPE or a 360 can at well designed tasks for them to accomplish) and not only that, the way it's implemented in the PS3 architecture counts also. The Xenon has to share its L2 cache amongst all three cores and access to main memory provides far less bandwidth as it has to share the bus with the GPU and the PS3's XDR Ram provides much lower latencies.

And how exactly do you quantify it being better than a PC (i assume you mean x86 based) CPU? My GPU can perform certain tasks significantly better than my CPU, but it would suck as a general purpose processor.