Keyword Analysis & Research: which search engine should i use

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
which search engine should i use	0.46	0.8	8084	39	32
which	0.3	1	8853	12	5
search	1.26	0.6	397	32	6
engine	0.1	0.8	6236	89	6
should	0.47	1	4516	97	6
i	0.22	0.7	6889	35	1
use	0.11	0.3	7796	34	3

Keyword	CPC	PCC	Volume	Score
which search engine should i use	0.79	0.8	9945	52