I always try to get one person out, usually as a surprise out of nowhere when possible. Once you've taken someone out, you're absolutely more of a target, though, so you have to be ready for
retaliation. Sometimes, I get someone where I could take them out (but they don't know it) and then I start working on getting the rest of the table in similar range. Then, when i start taking people out, everyone's already close, and if someone threatens to win or ruin my plans, I can end them. It depends on how well you can protect your commander, how easily you can
recover from removal or a board wipe, if there are opponents that can win out of nowhere, how effective your evasion is, and more. Play each game in the strategy that's right for that game. If you don't appear a threat or an easy target, let your opponents whittle away at each other while you set up a surprise win. If you have to win fast before you're facing an impenetrable wall of blockers, take out the biggest threat as quickly as possible. Be aggressive, that's what Voltron's all about, but don't just attack for attacks sake. Think through each turn and several turns ahead. Be smart, read the board, and don't be too impulsive, even if that's your commanders "thing".