US DOMESTIC EQUAL WEIGHT ETFS GUGGENHEIM: RCD CONS. DISCRETIONARY RGI INDUSTRIALS RHS STAPLES RTM MATERIALS RYE ENERGY RYF FINANCIALS RYH HEALTHCARE RYT INFO TECHNOLOGY RYU UTILITIES
INTERNATIONAL SECTOR ETFS SPDR: IPD CONS. DISCRETIONARY IPF FINANCIALS IPK INFO TECHNOLOGY IPN INDUSTRIALS IPS CONSUMER STAPLES IPU UTILITIES IPW ENERGY IRV BASIC MATERIALS IRY HEALTHCARE
So there are lots of potential providers. It's hard to find a lot of differences. The pure index ETFs tend to be more broadly diversified, but aren't so if one looks at the cap weighting. The equal weight ETFs perform differently than do the cap weighted ones. The "filtered" ETFs such as 1st Trust and PowerShares offer also behave differently than their broad index brothers.
PowerShares and 1st Trust are not truly 'equal weight' but are more so than the rest with the exception of the Guggenheim products (equal weight by design). The international sector ETFs are cap weighted along with the SPDR and IShares ETFs. Take a look at the Technology Sector ETFs and what the current AAPL weight is in their portfolio to see what I mean.
If there were a clear winner, we'd all own just those.
If you look backward for testing, note that the PowerShares pieces changed their filter mechanism from their "Intellidex" method to the Dorsey Wright "momentum" method last February. So, historic 'personality' before Feb won't necessarily be what we see going forward.