This comprehensive analysis compares COMMON and THETA, two distinct blockchain platforms with fundamentally different value propositions and market maturity levels. COMMON, launched in October 2025, is an AI-native workspace platform tokenizing communities and projects for 3.8 million users, currently trading at $0.002777 with significant recovery potential. THETA, operational since 2017, is an established decentralized video streaming infrastructure with complete token circulation, trading at $0.2696 with a $269.6M market cap. The article examines historical price trends, tokenomics, institutional adoption, technical ecosystems, and regulatory considerations to guide investment decisions. Through 2026-2031 price forecasts and risk analysis, it offers tailored strategies for conservative, aggressive, and institutional investors. The comparison addresses critical questions about market positioning, liquidity conditions, and which asset better suits different investor profiles and risk tolerances in current mar