The Sky system places the most emphasis on risk control. Taking oracle risk as an example, Spark uses multiple independent oracle providers Chainlink, RedStone, and Chronicle to aggregate, while also having TWAP time weighting and rollback logic. Aave relies almost entirely on Chainlink as a single oracle provider, and of course, Link has not encountered any issues so far. The design of Morpho is quite unique. It is completely oracle agnostic, so there is no built-in oracle in the protocol. Each market is specified by the creator, but the default setting is also an independent single oracle. Morpho is equivalent to delegating this risk to each market, and because markets are isolated, problems with Oracle in one market will not affect other markets. In contrast, I think the Sky solution is currently the optimal solution in the market.