Bitcoin SV is a Bitcoin Cash hard fork that took place in 2018 as an alternative to Bitcoin Cash ABC. One of the core developers of Bitcoin SV Craig Wright believes that Bitcoin SV is much closer to the initial idea of Bitcoin than Bitcoin Cash ABC. The dev team of Bitcoin SV is focused on fast transactions. Their goal is creating use case opportunities for Bitcoin.
Bitcoin SV survived a series of delistings from several notable cryptocurrency exchanges and managed to keep its high position on the market. Bitcoin SV is one of the top 10 cryptocurrencies by market capitalization and its daily trade volume is similar to its rival Bitcoin Cash ABC.
Dash was launched in 2014 and changed several names before becoming Dash as we know it today. The initial goal of the project was to create a cryptocurrency network which would operate faster and cheaper than Bitcoin and would be capable to maintain more privacy. Holders of large amounts of Dash have different privileges (Instant Send, Private Send, etc).
Dash is an open-source project. It has its own blockchain. The currency is supported by many crypto wallets and it has gained significant market capitalization. Another great achievement is its numerous partnerships including cooperations with Western Union, web stores, etc.