I can not tell you any one best gun for you but I can tell you that trying a number of different .45's makes a whole lot of sense. I have friends who purchased argentine .45's that are copys of the model 1911A1 and they are totally happy with them. I have several model 1911's that I love but what I carry these days is an EAA witness tactical. It has an electroless nickle finish that is unscratchable without a diamond abrasive. It is ported. It has a ten round magazine and a 3.5# single action trigger pull. The safety on this DA/SA opiece is like that on a 1911 permitting carry either with hammer down chambered round for a DA first shot or cocked and locked carry. It is my pocket pistol instead of a PPK .380.
The Sig P220 is exellent. For 1911's Kimber, Wilson and Les Baer have some exellent executions of the design. The Mauser M2 is a convenient pocket pistol with eight rounds of .45acp. There are also some South African versions of the 1911 that are exellent.
I hope this helps.
Stay well - stay safe - Stay armed - Yorktown
I took an S&W .357 magnum with target trigger, hammer and grips with me on my first tour in Vietnam in 1965. Only weapon I carried for 8 months at Phu Bai, used it twice, worked fine. Sold it to an MP in Saigon when I left for twice what I paid for it in the states. All in all a profitable experience and a good weapon.