Seeking advice on what 3 cards to keep in Wallet

[RemyWinchester]

Looking for outside opinions on which three cards to carry (I like to carry 2-3 and my wallet will only hold 3 credit cards plus a debit)

I have:

Chase Freedom Visa (10 + 10 checking combo, 5% back rotating categories)

Penfed Plat Cash Visa (5% Gas, .25% everything else)

Penfed Defender Amex (1.5% CB automatically)

BoA Travel Rewards Sig (1.5% back in form of travel credit)

NFCU CashRewards Sig (1% cash back)

USAA World MC (just terrible rewards - not an option only pay my USAA insurance with it 1x a month)

This should be clear cut easy choice - but I'm HATING PENFED's website and inability to show pending transactions.  I check my statement every single day online - and it takes several days to post a transaction on my Penfed cards.   Though getting 5% back off gas is amazing. 

I was thinking:

Chase Freedom - Purchases under $10 and 5% rotators 

PENFED AMEX - Purchases over $10 for 1.5% cash back/monthly

PENFED Visa - Gas only 5%

I'm also debating which checking/debit card to carry, LOL, between NFCU/USAA/Chase since I have no account fees on any of them.  Just a matter of trying to keep things simple and effective!

[RemyWinchester]

I ended up going with (for now):

Penfed Amex - Everything minus gas

Penfed Visa - Gas

NFCU CashRewards - Backup AMEX & PENFED

NFCU Debit Card

My pay goes into NFCU.  So for simplicity I will only have to really monitor 2 websites on a daily basis instead of 3-4.   

Thanks to everyone who contributed and helped me realize this!

[Tran92]

I would choose those three credit card as well. As for the debit I would choose chase since they have more ATM which is convenient.

[bribro]

I think you made the right decision.