The Avalanche token (AVAX) performs various tasks within Avalanche's Proof of Stake blockchain network. The Avalanche token functions as a rewards and payment system for users. The network is designed to be an open-source platform for launching highly decentralized applications, enterprise deployments, and decentralized financial instruments. The Avalanche ecosystem is meant to be smore scalable and interoperable than other blockchain platforms. Unlike Bitcoin and many other networks, transaction fees are “burnt” in order to increase token scarcity. This process is offset by the release, or “minting,” of new coins.
Avalanche was launched by Ava Labs, whose founder Emin Gün Sirer is a veteran computer scientist that has been very influential in the Blockchain space. Gün Sirer is a computer science professor at Cornell University and has written extensively about scaling blockchain networks.

Stakenet is a blockchain with a unique Trustless Proof of Stake (TPoS) consensus mechanism that allows users to participate in the staking process without having to freeze their coins in the wallet. It's powered by the native coin XSN and is managed by its own masternodes. Stakenet (XSN) was created to build an ecosystem that allows easy and secure offline staking and cross chain communication. It has characteristics of Bitcoin, Dash and Peercoin, that were modified for their own purposes. XSN uses the Bitcoin Core, an improved Dash masternode architecture, and Peercoin's validation mechanism for creating new blocks.

Ubiq is an Ethereum fork that aims to create a more stable smart contract platform for building DApps. Ubiq's protocol currently uses a Proof-of-Work (PoW) consensus mechanism, but will switch to Proof-of-Stake in 2019. The network is powered by the UBQ coin.
Ubiq's goal is to create a reliable and stable platform for developing DApps by modifying Ethereum's code base with important changes that will make it more secure and reduce instability. Consensus is based on their Flux Difficulty Algorithm, which is designed to constantly adjust the hash rate to protect against network attacks.